21079800

素因数分解:

$2^3\times 3^2\times 5^2\times 7^2\times {\mathrm{239}}^1$

素因数の和:275

約数の個数: 216

約数和(自身を含む): 82695600

約数和(自身を除く): 61615800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 49, 50, 56, 60, 63, 70, 72, 75, 84, 90, 98, 100, 105, 120, 126, 140, 147, 150, 168, 175, 180, 196, 200, 210, 225, 239, 245, 252, 280, 294, 300, 315, 350, 360, 392, 420, 441, 450, 478, 490, 504, 525, 588, 600, 630, 700, 717, 735, 840, 882, 900, 956, 980, 1050, 1176, 1195, 1225, 1260, 1400, 1434, 1470, 1575, 1673, 1764, 1800, 1912, 1960, 2100, 2151, 2205, 2390, 2450, 2520, 2868, 2940, 3150, 3346, 3528, 3585, 3675, 4200, 4302, 4410, 4780, 4900, 5019, 5736, 5880, 5975, 6300, 6692, 7170, 7350, 8365, 8604, 8820, 9560, 9800, 10038, 10755, 11025, 11711, 11950, 12600, 13384, 14340, 14700, 15057, 16730, 17208, 17640, 17925, 20076, 21510, 22050, 23422, 23900, 25095, 28680, 29400, 30114, 33460, 35133, 35850, 40152, 41825, 43020, 44100, 46844, 47800, 50190, 53775, 58555, 60228, 66920, 70266, 71700, 75285, 83650, 86040, 88200, 93688, 100380, 105399, 107550, 117110, 120456, 125475, 140532, 143400, 150570, 167300, 175665, 200760, 210798, 215100, 234220, 250950, 281064, 292775, 301140, 334600, 351330, 376425, 421596, 430200, 468440, 501900, 526995, 585550, 602280, 702660, 752850, 843192, 878325, 1003800, 1053990, 1171100, 1405320, 1505700, 1756650, 2107980, 2342200, 2634975, 3011400, 3513300, 4215960, 5269950, 7026600, 10539900, 21079800]

約数ペア:

[(1, 21079800), (2, 10539900), (3, 7026600), (4, 5269950), (5, 4215960), (6, 3513300), (7, 3011400), (8, 2634975), (9, 2342200), (10, 2107980), (12, 1756650), (14, 1505700), (15, 1405320), (18, 1171100), (20, 1053990), (21, 1003800), (24, 878325), (25, 843192), (28, 752850), (30, 702660), (35, 602280), (36, 585550), (40, 526995), (42, 501900), (45, 468440), (49, 430200), (50, 421596), (56, 376425), (60, 351330), (63, 334600), (70, 301140), (72, 292775), (75, 281064), (84, 250950), (90, 234220), (98, 215100), (100, 210798), (105, 200760), (120, 175665), (126, 167300), (140, 150570), (147, 143400), (150, 140532), (168, 125475), (175, 120456), (180, 117110), (196, 107550), (200, 105399), (210, 100380), (225, 93688), (239, 88200), (245, 86040), (252, 83650), (280, 75285), (294, 71700), (300, 70266), (315, 66920), (350, 60228), (360, 58555), (392, 53775), (420, 50190), (441, 47800), (450, 46844), (478, 44100), (490, 43020), (504, 41825), (525, 40152), (588, 35850), (600, 35133), (630, 33460), (700, 30114), (717, 29400), (735, 28680), (840, 25095), (882, 23900), (900, 23422), (956, 22050), (980, 21510), (1050, 20076), (1176, 17925), (1195, 17640), (1225, 17208), (1260, 16730), (1400, 15057), (1434, 14700), (1470, 14340), (1575, 13384), (1673, 12600), (1764, 11950), (1800, 11711), (1912, 11025), (1960, 10755), (2100, 10038), (2151, 9800), (2205, 9560), (2390, 8820), (2450, 8604), (2520, 8365), (2868, 7350), (2940, 7170), (3150, 6692), (3346, 6300), (3528, 5975), (3585, 5880), (3675, 5736), (4200, 5019), (4302, 4900), (4410, 4780)]