21218100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{661}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 62058528

約数和(自身を除く): 40840428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 107, 150, 214, 300, 321, 428, 535, 642, 661, 1070, 1284, 1322, 1605, 1983, 2140, 2644, 2675, 3210, 3305, 3966, 5350, 6420, 6610, 7932, 8025, 9915, 10700, 13220, 16050, 16525, 19830, 32100, 33050, 39660, 49575, 66100, 70727, 99150, 141454, 198300, 212181, 282908, 353635, 424362, 707270, 848724, 1060905, 1414540, 1768175, 2121810, 3536350, 4243620, 5304525, 7072700, 10609050, 21218100]

約数ペア:

[(1, 21218100), (2, 10609050), (3, 7072700), (4, 5304525), (5, 4243620), (6, 3536350), (10, 2121810), (12, 1768175), (15, 1414540), (20, 1060905), (25, 848724), (30, 707270), (50, 424362), (60, 353635), (75, 282908), (100, 212181), (107, 198300), (150, 141454), (214, 99150), (300, 70727), (321, 66100), (428, 49575), (535, 39660), (642, 33050), (661, 32100), (1070, 19830), (1284, 16525), (1322, 16050), (1605, 13220), (1983, 10700), (2140, 9915), (2644, 8025), (2675, 7932), (3210, 6610), (3305, 6420), (3966, 5350)]