21947272

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{161377}}^1$

素因数の和:161400

約数の個数: 16

約数和(自身を含む): 43572060

約数和(自身を除く): 21624788

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 161377, 322754, 645508, 1291016, 2743409, 5486818, 10973636, 21947272]

約数ペア:

[(1, 21947272), (2, 10973636), (4, 5486818), (8, 2743409), (17, 1291016), (34, 645508), (68, 322754), (136, 161377)]