20742992

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76261}}^1$

素因数の和:76286

約数の個数: 20

約数和(自身を含む): 42554196

約数和(自身を除く): 21811204

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76261, 152522, 305044, 610088, 1220176, 1296437, 2592874, 5185748, 10371496, 20742992]

約数ペア:

[(1, 20742992), (2, 10371496), (4, 5185748), (8, 2592874), (16, 1296437), (17, 1220176), (34, 610088), (68, 305044), (136, 152522), (272, 76261)]