21529072

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79151}}^1$

素因数の和:79176

約数の個数: 20

約数和(自身を含む): 44166816

約数和(自身を除く): 22637744

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79151, 158302, 316604, 633208, 1266416, 1345567, 2691134, 5382268, 10764536, 21529072]

約数ペア:

[(1, 21529072), (2, 10764536), (4, 5382268), (8, 2691134), (16, 1345567), (17, 1266416), (34, 633208), (68, 316604), (136, 158302), (272, 79151)]