21393273

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{5737}}^1$

素因数の和:5864

約数の個数: 16

約数和(自身を含む): 31398336

約数和(自身を除く): 10005063

約数列:

[1, 3, 11, 33, 113, 339, 1243, 3729, 5737, 17211, 63107, 189321, 648281, 1944843, 7131091, 21393273]

約数ペア:

[(1, 21393273), (3, 7131091), (11, 1944843), (33, 648281), (113, 189321), (339, 63107), (1243, 17211), (3729, 5737)]