21373800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^2\times {\mathrm{727}}^1$

素因数の和:760

約数の個数: 144

約数和(自身を含む): 77182560

約数和(自身を除く): 55808760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 140, 147, 150, 168, 175, 196, 200, 210, 245, 280, 294, 300, 350, 392, 420, 490, 525, 588, 600, 700, 727, 735, 840, 980, 1050, 1176, 1225, 1400, 1454, 1470, 1960, 2100, 2181, 2450, 2908, 2940, 3635, 3675, 4200, 4362, 4900, 5089, 5816, 5880, 7270, 7350, 8724, 9800, 10178, 10905, 14540, 14700, 15267, 17448, 18175, 20356, 21810, 25445, 29080, 29400, 30534, 35623, 36350, 40712, 43620, 50890, 54525, 61068, 71246, 72700, 76335, 87240, 101780, 106869, 109050, 122136, 127225, 142492, 145400, 152670, 178115, 203560, 213738, 218100, 254450, 284984, 305340, 356230, 381675, 427476, 436200, 508900, 534345, 610680, 712460, 763350, 854952, 890575, 1017800, 1068690, 1424920, 1526700, 1781150, 2137380, 2671725, 3053400, 3562300, 4274760, 5343450, 7124600, 10686900, 21373800]

約数ペア:

[(1, 21373800), (2, 10686900), (3, 7124600), (4, 5343450), (5, 4274760), (6, 3562300), (7, 3053400), (8, 2671725), (10, 2137380), (12, 1781150), (14, 1526700), (15, 1424920), (20, 1068690), (21, 1017800), (24, 890575), (25, 854952), (28, 763350), (30, 712460), (35, 610680), (40, 534345), (42, 508900), (49, 436200), (50, 427476), (56, 381675), (60, 356230), (70, 305340), (75, 284984), (84, 254450), (98, 218100), (100, 213738), (105, 203560), (120, 178115), (140, 152670), (147, 145400), (150, 142492), (168, 127225), (175, 122136), (196, 109050), (200, 106869), (210, 101780), (245, 87240), (280, 76335), (294, 72700), (300, 71246), (350, 61068), (392, 54525), (420, 50890), (490, 43620), (525, 40712), (588, 36350), (600, 35623), (700, 30534), (727, 29400), (735, 29080), (840, 25445), (980, 21810), (1050, 20356), (1176, 18175), (1225, 17448), (1400, 15267), (1454, 14700), (1470, 14540), (1960, 10905), (2100, 10178), (2181, 9800), (2450, 8724), (2908, 7350), (2940, 7270), (3635, 5880), (3675, 5816), (4200, 5089), (4362, 4900)]