21807770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{787}}^1$

素因数の和:974

約数の個数: 32

約数和(自身を含む): 41871168

約数和(自身を除く): 20063398

約数列:

[1, 2, 5, 10, 17, 34, 85, 163, 170, 326, 787, 815, 1574, 1630, 2771, 3935, 5542, 7870, 13379, 13855, 26758, 27710, 66895, 128281, 133790, 256562, 641405, 1282810, 2180777, 4361554, 10903885, 21807770]

約数ペア:

[(1, 21807770), (2, 10903885), (5, 4361554), (10, 2180777), (17, 1282810), (34, 641405), (85, 256562), (163, 133790), (170, 128281), (326, 66895), (787, 27710), (815, 26758), (1574, 13855), (1630, 13379), (2771, 7870), (3935, 5542)]