400881

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{541}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 607040

約数和(自身を除く): 206159

約数列:

[1, 3, 13, 19, 39, 57, 247, 541, 741, 1623, 7033, 10279, 21099, 30837, 133627, 400881]

約数ペア:

[(1, 400881), (3, 133627), (13, 30837), (19, 21099), (39, 10279), (57, 7033), (247, 1623), (541, 741)]