21914990

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16729}}^1$

素因数の和:16867

約数の個数: 16

約数和(自身を含む): 39750480

約数和(自身を除く): 17835490

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 16729, 33458, 83645, 167290, 2191499, 4382998, 10957495, 21914990]

約数ペア:

[(1, 21914990), (2, 10957495), (5, 4382998), (10, 2191499), (131, 167290), (262, 83645), (655, 33458), (1310, 16729)]