21147962

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8819}}^1$

素因数の和:8941

約数の個数: 16

約数和(自身を含む): 34927200

約数和(自身を除く): 13779238

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 8819, 17638, 97009, 194018, 961271, 1922542, 10573981, 21147962]

約数ペア:

[(1, 21147962), (2, 10573981), (11, 1922542), (22, 961271), (109, 194018), (218, 97009), (1199, 17638), (2398, 8819)]