21982389

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{51241}}^1$

素因数の和:51268

約数の個数: 16

約数和(自身を含む): 34434624

約数和(自身を除く): 12452235

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 51241, 153723, 563651, 666133, 1690953, 1998399, 7327463, 21982389]

約数ペア:

[(1, 21982389), (3, 7327463), (11, 1998399), (13, 1690953), (33, 666133), (39, 563651), (143, 153723), (429, 51241)]