21109946

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2381}}^1$

素因数の和:2438

約数の個数: 32

約数和(自身を含む): 38416896

約数和(自身を除く): 17306950

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 143, 286, 341, 403, 682, 806, 2381, 4433, 4762, 8866, 26191, 30953, 52382, 61906, 73811, 147622, 340483, 680966, 811921, 959543, 1623842, 1919086, 10554973, 21109946]

約数ペア:

[(1, 21109946), (2, 10554973), (11, 1919086), (13, 1623842), (22, 959543), (26, 811921), (31, 680966), (62, 340483), (143, 147622), (286, 73811), (341, 61906), (403, 52382), (682, 30953), (806, 26191), (2381, 8866), (4433, 4762)]