31831317

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3391}}^1$

素因数の和:3553

約数の個数: 24

約数和(自身を含む): 52915200

約数和(自身を除く): 21083883

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 3129, 3391, 9387, 10173, 23737, 30519, 71211, 213633, 505259, 1515777, 3536813, 4547331, 10610439, 31831317]

約数ペア:

[(1, 31831317), (3, 10610439), (7, 4547331), (9, 3536813), (21, 1515777), (63, 505259), (149, 213633), (447, 71211), (1043, 30519), (1341, 23737), (3129, 10173), (3391, 9387)]