21557564

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45289}}^1$

素因数の和:45317

約数の個数: 24

約数和(自身を含む): 45652320

約数和(自身を除く): 24094756

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 45289, 90578, 181156, 317023, 634046, 769913, 1268092, 1539826, 3079652, 5389391, 10778782, 21557564]

約数ペア:

[(1, 21557564), (2, 10778782), (4, 5389391), (7, 3079652), (14, 1539826), (17, 1268092), (28, 769913), (34, 634046), (68, 317023), (119, 181156), (238, 90578), (476, 45289)]