20439016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{3331}}^1$

素因数の和:3409

約数の個数: 32

約数和(自身を含む): 41983200

約数和(自身を除く): 21544184

約数列:

[1, 2, 4, 8, 13, 26, 52, 59, 104, 118, 236, 472, 767, 1534, 3068, 3331, 6136, 6662, 13324, 26648, 43303, 86606, 173212, 196529, 346424, 393058, 786116, 1572232, 2554877, 5109754, 10219508, 20439016]

約数ペア:

[(1, 20439016), (2, 10219508), (4, 5109754), (8, 2554877), (13, 1572232), (26, 786116), (52, 393058), (59, 346424), (104, 196529), (118, 173212), (236, 86606), (472, 43303), (767, 26648), (1534, 13324), (3068, 6662), (3331, 6136)]