18988838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{4519}}^1$

素因数の和:4723

約数の個数: 16

約数和(自身を含む): 31242240

約数和(自身を除く): 12253402

約数列:

[1, 2, 11, 22, 191, 382, 2101, 4202, 4519, 9038, 49709, 99418, 863129, 1726258, 9494419, 18988838]

約数ペア:

[(1, 18988838), (2, 9494419), (11, 1726258), (22, 863129), (191, 99418), (382, 49709), (2101, 9038), (4202, 4519)]