21321430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164011}}^1$

素因数の和:164031

約数の個数: 16

約数和(自身を含む): 41331024

約数和(自身を除く): 20009594

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 164011, 328022, 820055, 1640110, 2132143, 4264286, 10660715, 21321430]

約数ペア:

[(1, 21321430), (2, 10660715), (5, 4264286), (10, 2132143), (13, 1640110), (26, 820055), (65, 328022), (130, 164011)]