20657345

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{761}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 25511760

約数和(自身を除く): 4854415

約数列:

[1, 5, 61, 89, 305, 445, 761, 3805, 5429, 27145, 46421, 67729, 232105, 338645, 4131469, 20657345]

約数ペア:

[(1, 20657345), (5, 4131469), (61, 338645), (89, 232105), (305, 67729), (445, 46421), (761, 27145), (3805, 5429)]