31357989

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2179}}^1$

素因数の和:2242

約数の個数: 32

約数和(自身を含む): 51273600

約数和(自身を除く): 19915611

約数列:

[1, 3, 9, 13, 27, 39, 41, 117, 123, 351, 369, 533, 1107, 1599, 2179, 4797, 6537, 14391, 19611, 28327, 58833, 84981, 89339, 254943, 268017, 764829, 804051, 1161407, 2412153, 3484221, 10452663, 31357989]

約数ペア:

[(1, 31357989), (3, 10452663), (9, 3484221), (13, 2412153), (27, 1161407), (39, 804051), (41, 764829), (117, 268017), (123, 254943), (351, 89339), (369, 84981), (533, 58833), (1107, 28327), (1599, 19611), (2179, 14391), (4797, 6537)]