31015803

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 55544832

約数和(自身を除く): 24529029

約数列:

[1, 3, 7, 13, 17, 21, 39, 41, 51, 91, 119, 123, 163, 221, 273, 287, 357, 489, 533, 663, 697, 861, 1141, 1547, 1599, 2091, 2119, 2771, 3423, 3731, 4641, 4879, 6357, 6683, 8313, 9061, 11193, 14637, 14833, 19397, 20049, 27183, 36023, 44499, 46781, 58191, 63427, 86879, 108069, 113611, 140343, 190281, 252161, 260637, 340833, 608153, 756483, 795277, 1476943, 1824459, 2385831, 4430829, 10338601, 31015803]

約数ペア:

[(1, 31015803), (3, 10338601), (7, 4430829), (13, 2385831), (17, 1824459), (21, 1476943), (39, 795277), (41, 756483), (51, 608153), (91, 340833), (119, 260637), (123, 252161), (163, 190281), (221, 140343), (273, 113611), (287, 108069), (357, 86879), (489, 63427), (533, 58191), (663, 46781), (697, 44499), (861, 36023), (1141, 27183), (1547, 20049), (1599, 19397), (2091, 14833), (2119, 14637), (2771, 11193), (3423, 9061), (3731, 8313), (4641, 6683), (4879, 6357)]