21805099995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1585249}}^1$

素因数の和:1585395

約数の個数: 32

約数和(自身を含む): 40176576000

約数和(自身を除く): 18371476005

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 131, 393, 655, 917, 1965, 2751, 4585, 13755, 1585249, 4755747, 7926245, 11096743, 23778735, 33290229, 55483715, 166451145, 207667619, 623002857, 1038338095, 1453673333, 3115014285, 4361019999, 7268366665, 21805099995]

約数ペア:

[(1, 21805099995), (3, 7268366665), (5, 4361019999), (7, 3115014285), (15, 1453673333), (21, 1038338095), (35, 623002857), (105, 207667619), (131, 166451145), (393, 55483715), (655, 33290229), (917, 23778735), (1965, 11096743), (2751, 7926245), (4585, 4755747), (13755, 1585249)]