18438335

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2531}}^1$

素因数の和:2614

約数の個数: 16

約数和(自身を含む): 23334912

約数和(自身を除く): 4896577

約数列:

[1, 5, 31, 47, 155, 235, 1457, 2531, 7285, 12655, 78461, 118957, 392305, 594785, 3687667, 18438335]

約数ペア:

[(1, 18438335), (5, 3687667), (31, 594785), (47, 392305), (155, 118957), (235, 78461), (1457, 12655), (2531, 7285)]