17955982

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{8081}}^1$

素因数の和:8195

約数の個数: 16

約数和(自身を含む): 29677104

約数和(自身を除く): 11721122

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 8081, 16162, 88891, 177782, 816181, 1632362, 8977991, 17955982]

約数ペア:

[(1, 17955982), (2, 8977991), (11, 1632362), (22, 816181), (101, 177782), (202, 88891), (1111, 16162), (2222, 8081)]