20971472

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77101}}^1$

素因数の和:77126

約数の個数: 20

約数和(自身を含む): 43022916

約数和(自身を除く): 22051444

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77101, 154202, 308404, 616808, 1233616, 1310717, 2621434, 5242868, 10485736, 20971472]

約数ペア:

[(1, 20971472), (2, 10485736), (4, 5242868), (8, 2621434), (16, 1310717), (17, 1233616), (34, 616808), (68, 308404), (136, 154202), (272, 77101)]