31425381

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 48

約数和(自身を含む): 51649920

約数和(自身を除く): 20224539

約数列:

[1, 3, 9, 13, 27, 39, 71, 97, 117, 169, 213, 291, 351, 507, 639, 873, 923, 1261, 1521, 1917, 2619, 2769, 3783, 4563, 6887, 8307, 11349, 11999, 16393, 20661, 24921, 34047, 35997, 49179, 61983, 89531, 107991, 147537, 185949, 268593, 323973, 442611, 805779, 1163903, 2417337, 3491709, 10475127, 31425381]

約数ペア:

[(1, 31425381), (3, 10475127), (9, 3491709), (13, 2417337), (27, 1163903), (39, 805779), (71, 442611), (97, 323973), (117, 268593), (169, 185949), (213, 147537), (291, 107991), (351, 89531), (507, 61983), (639, 49179), (873, 35997), (923, 34047), (1261, 24921), (1521, 20661), (1917, 16393), (2619, 11999), (2769, 11349), (3783, 8307), (4563, 6887)]