31331139

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1627}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 48996288

約数和(自身を除く): 17665149

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 1627, 2751, 4881, 6419, 11389, 19257, 34167, 79723, 213137, 239169, 639411, 1491959, 4475877, 10443713, 31331139]

約数ペア:

[(1, 31331139), (3, 10443713), (7, 4475877), (21, 1491959), (49, 639411), (131, 239169), (147, 213137), (393, 79723), (917, 34167), (1627, 19257), (2751, 11389), (4881, 6419)]