21621787

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 24560640

約数和(自身を除く): 2938853

約数列:

[1, 11, 31, 163, 341, 389, 1793, 4279, 5053, 12059, 55583, 63407, 132649, 697477, 1965617, 21621787]

約数ペア:

[(1, 21621787), (11, 1965617), (31, 697477), (163, 132649), (341, 63407), (389, 55583), (1793, 12059), (4279, 5053)]