40397721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{147977}}^1$

素因数の和:148000

約数の個数: 16

約数和(自身を含む): 66294144

約数和(自身を除く): 25896423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 147977, 443931, 1035839, 1923701, 3107517, 5771103, 13465907, 40397721]

約数ペア:

[(1, 40397721), (3, 13465907), (7, 5771103), (13, 3107517), (21, 1923701), (39, 1035839), (91, 443931), (273, 147977)]