21014280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:324

約数の個数: 192

約数和(自身を含む): 80870400

約数和(自身を除く): 59856120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 248, 252, 269, 279, 280, 310, 315, 360, 372, 420, 434, 465, 504, 538, 558, 620, 630, 651, 744, 807, 840, 868, 930, 1076, 1085, 1116, 1240, 1260, 1302, 1345, 1395, 1614, 1736, 1860, 1883, 1953, 2152, 2170, 2232, 2421, 2520, 2604, 2690, 2790, 3228, 3255, 3720, 3766, 3906, 4035, 4340, 4842, 5208, 5380, 5580, 5649, 6456, 6510, 7532, 7812, 8070, 8339, 8680, 9415, 9684, 9765, 10760, 11160, 11298, 12105, 13020, 15064, 15624, 16140, 16678, 16947, 18830, 19368, 19530, 22596, 24210, 25017, 26040, 28245, 32280, 33356, 33894, 37660, 39060, 41695, 45192, 48420, 50034, 56490, 58373, 66712, 67788, 75051, 75320, 78120, 83390, 84735, 96840, 100068, 112980, 116746, 125085, 135576, 150102, 166780, 169470, 175119, 200136, 225960, 233492, 250170, 291865, 300204, 333560, 338940, 350238, 375255, 466984, 500340, 525357, 583730, 600408, 677880, 700476, 750510, 875595, 1000680, 1050714, 1167460, 1400952, 1501020, 1751190, 2101428, 2334920, 2626785, 3002040, 3502380, 4202856, 5253570, 7004760, 10507140, 21014280]

約数ペア:

[(1, 21014280), (2, 10507140), (3, 7004760), (4, 5253570), (5, 4202856), (6, 3502380), (7, 3002040), (8, 2626785), (9, 2334920), (10, 2101428), (12, 1751190), (14, 1501020), (15, 1400952), (18, 1167460), (20, 1050714), (21, 1000680), (24, 875595), (28, 750510), (30, 700476), (31, 677880), (35, 600408), (36, 583730), (40, 525357), (42, 500340), (45, 466984), (56, 375255), (60, 350238), (62, 338940), (63, 333560), (70, 300204), (72, 291865), (84, 250170), (90, 233492), (93, 225960), (105, 200136), (120, 175119), (124, 169470), (126, 166780), (140, 150102), (155, 135576), (168, 125085), (180, 116746), (186, 112980), (210, 100068), (217, 96840), (248, 84735), (252, 83390), (269, 78120), (279, 75320), (280, 75051), (310, 67788), (315, 66712), (360, 58373), (372, 56490), (420, 50034), (434, 48420), (465, 45192), (504, 41695), (538, 39060), (558, 37660), (620, 33894), (630, 33356), (651, 32280), (744, 28245), (807, 26040), (840, 25017), (868, 24210), (930, 22596), (1076, 19530), (1085, 19368), (1116, 18830), (1240, 16947), (1260, 16678), (1302, 16140), (1345, 15624), (1395, 15064), (1614, 13020), (1736, 12105), (1860, 11298), (1883, 11160), (1953, 10760), (2152, 9765), (2170, 9684), (2232, 9415), (2421, 8680), (2520, 8339), (2604, 8070), (2690, 7812), (2790, 7532), (3228, 6510), (3255, 6456), (3720, 5649), (3766, 5580), (3906, 5380), (4035, 5208), (4340, 4842)]