21370291195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{509}}^1\times {\mathrm{10457}}^1$

素因数の和:11055

約数の個数: 32

約数和(自身を含む): 28417314240

約数和(自身を除く): 7047023045

約数列:

[1, 5, 11, 55, 73, 365, 509, 803, 2545, 4015, 5599, 10457, 27995, 37157, 52285, 115027, 185785, 408727, 575135, 763361, 2043635, 3816805, 5322613, 8396971, 26613065, 41984855, 58548743, 292743715, 388550749, 1942753745, 4274058239, 21370291195]

約数ペア:

[(1, 21370291195), (5, 4274058239), (11, 1942753745), (55, 388550749), (73, 292743715), (365, 58548743), (509, 41984855), (803, 26613065), (2545, 8396971), (4015, 5322613), (5599, 3816805), (10457, 2043635), (27995, 763361), (37157, 575135), (52285, 408727), (115027, 185785)]