21405241

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{827}}^1$

素因数の和:1032

約数の個数: 16

約数和(自身を含む): 25316928

約数和(自身を除く): 3911687

約数列:

[1, 11, 13, 143, 181, 827, 1991, 2353, 9097, 10751, 25883, 118261, 149687, 1646557, 1945931, 21405241]

約数ペア:

[(1, 21405241), (11, 1945931), (13, 1646557), (143, 149687), (181, 118261), (827, 25883), (1991, 10751), (2353, 9097)]