20786512

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76421}}^1$

素因数の和:76446

約数の個数: 20

約数和(自身を含む): 42643476

約数和(自身を除く): 21856964

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76421, 152842, 305684, 611368, 1222736, 1299157, 2598314, 5196628, 10393256, 20786512]

約数ペア:

[(1, 20786512), (2, 10393256), (4, 5196628), (8, 2598314), (16, 1299157), (17, 1222736), (34, 611368), (68, 305684), (136, 152842), (272, 76421)]