21370700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{967}}^1$

素因数の和:1011

約数の個数: 72

約数和(自身を含む): 52934112

約数和(自身を除く): 31563412

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 650, 850, 884, 967, 1105, 1300, 1700, 1934, 2210, 3868, 4420, 4835, 5525, 9670, 11050, 12571, 16439, 19340, 22100, 24175, 25142, 32878, 48350, 50284, 62855, 65756, 82195, 96700, 125710, 164390, 213707, 251420, 314275, 328780, 410975, 427414, 628550, 821950, 854828, 1068535, 1257100, 1643900, 2137070, 4274140, 5342675, 10685350, 21370700]

約数ペア:

[(1, 21370700), (2, 10685350), (4, 5342675), (5, 4274140), (10, 2137070), (13, 1643900), (17, 1257100), (20, 1068535), (25, 854828), (26, 821950), (34, 628550), (50, 427414), (52, 410975), (65, 328780), (68, 314275), (85, 251420), (100, 213707), (130, 164390), (170, 125710), (221, 96700), (260, 82195), (325, 65756), (340, 62855), (425, 50284), (442, 48350), (650, 32878), (850, 25142), (884, 24175), (967, 22100), (1105, 19340), (1300, 16439), (1700, 12571), (1934, 11050), (2210, 9670), (3868, 5525), (4420, 4835)]