20557624

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2129}}^1$

素因数の和:2223

約数の個数: 32

約数和(自身を含む): 41407200

約数和(自身を除く): 20849576

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 136, 142, 284, 568, 1207, 2129, 2414, 4258, 4828, 8516, 9656, 17032, 36193, 72386, 144772, 151159, 289544, 302318, 604636, 1209272, 2569703, 5139406, 10278812, 20557624]

約数ペア:

[(1, 20557624), (2, 10278812), (4, 5139406), (8, 2569703), (17, 1209272), (34, 604636), (68, 302318), (71, 289544), (136, 151159), (142, 144772), (284, 72386), (568, 36193), (1207, 17032), (2129, 9656), (2414, 8516), (4258, 4828)]