21762465

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2753}}^1$

素因数の和:2809

約数の個数: 32

約数和(自身を含む): 38071296

約数和(自身を除く): 16308831

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2635, 2753, 7905, 8259, 13765, 41295, 46801, 85343, 140403, 234005, 256029, 426715, 702015, 1280145, 1450831, 4352493, 7254155, 21762465]

約数ペア:

[(1, 21762465), (3, 7254155), (5, 4352493), (15, 1450831), (17, 1280145), (31, 702015), (51, 426715), (85, 256029), (93, 234005), (155, 140403), (255, 85343), (465, 46801), (527, 41295), (1581, 13765), (2635, 8259), (2753, 7905)]