17981379

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{51229}}^1$

素因数の和:51251

約数の個数: 16

約数和(自身を含む): 28688800

約数和(自身を除く): 10707421

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 51229, 153687, 461061, 665977, 1383183, 1997931, 5993793, 17981379]

約数ペア:

[(1, 17981379), (3, 5993793), (9, 1997931), (13, 1383183), (27, 665977), (39, 461061), (117, 153687), (351, 51229)]