31447269

素因数分解:

$3^2\times 7^3\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 54163200

約数和(自身を除く): 22715931

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 167, 183, 343, 427, 441, 501, 549, 1029, 1169, 1281, 1503, 2989, 3087, 3507, 3843, 8183, 8967, 10187, 10521, 20923, 24549, 26901, 30561, 57281, 62769, 71309, 73647, 91683, 171843, 188307, 213927, 499163, 515529, 641781, 1497489, 3494141, 4492467, 10482423, 31447269]

約数ペア:

[(1, 31447269), (3, 10482423), (7, 4492467), (9, 3494141), (21, 1497489), (49, 641781), (61, 515529), (63, 499163), (147, 213927), (167, 188307), (183, 171843), (343, 91683), (427, 73647), (441, 71309), (501, 62769), (549, 57281), (1029, 30561), (1169, 26901), (1281, 24549), (1503, 20923), (2989, 10521), (3087, 10187), (3507, 8967), (3843, 8183)]