20900464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100483}}^1$

素因数の和:100504

約数の個数: 20

約数和(自身を含む): 43610056

約数和(自身を除く): 22709592

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100483, 200966, 401932, 803864, 1306279, 1607728, 2612558, 5225116, 10450232, 20900464]

約数ペア:

[(1, 20900464), (2, 10450232), (4, 5225116), (8, 2612558), (13, 1607728), (16, 1306279), (26, 803864), (52, 401932), (104, 200966), (208, 100483)]