21479770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{165229}}^1$

素因数の和:165249

約数の個数: 16

約数和(自身を含む): 41637960

約数和(自身を除く): 20158190

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 165229, 330458, 826145, 1652290, 2147977, 4295954, 10739885, 21479770]

約数ペア:

[(1, 21479770), (2, 10739885), (5, 4295954), (10, 2147977), (13, 1652290), (26, 826145), (65, 330458), (130, 165229)]