20908072

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{90121}}^1$

素因数の和:90156

約数の個数: 16

約数和(自身を含む): 40554900

約数和(自身を除く): 19646828

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 90121, 180242, 360484, 720968, 2613509, 5227018, 10454036, 20908072]

約数ペア:

[(1, 20908072), (2, 10454036), (4, 5227018), (8, 2613509), (29, 720968), (58, 360484), (116, 180242), (232, 90121)]