21409414

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{13499}}^1$

素因数の和:13575

約数の個数: 16

約数和(自身を含む): 35154000

約数和(自身を除く): 13744586

約数列:

[1, 2, 13, 26, 61, 122, 793, 1586, 13499, 26998, 175487, 350974, 823439, 1646878, 10704707, 21409414]

約数ペア:

[(1, 21409414), (2, 10704707), (13, 1646878), (26, 823439), (61, 350974), (122, 175487), (793, 26998), (1586, 13499)]