21586461

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{1321}}^1$

素因数の和:1756

約数の個数: 16

約数和(自身を含む): 31093440

約数和(自身を除く): 9506979

約数列:

[1, 3, 13, 39, 419, 1257, 1321, 3963, 5447, 16341, 17173, 51519, 553499, 1660497, 7195487, 21586461]

約数ペア:

[(1, 21586461), (3, 7195487), (13, 1660497), (39, 553499), (419, 51519), (1257, 17173), (1321, 16341), (3963, 5447)]