17990907

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 27156480

約数和(自身を除く): 9165573

約数列:

[1, 3, 11, 33, 67, 79, 103, 201, 237, 309, 737, 869, 1133, 2211, 2607, 3399, 5293, 6901, 8137, 15879, 20703, 24411, 58223, 75911, 89507, 174669, 227733, 268521, 545179, 1635537, 5996969, 17990907]

約数ペア:

[(1, 17990907), (3, 5996969), (11, 1635537), (33, 545179), (67, 268521), (79, 227733), (103, 174669), (201, 89507), (237, 75911), (309, 58223), (737, 24411), (869, 20703), (1133, 15879), (2211, 8137), (2607, 6901), (3399, 5293)]