18958617

素因数分解:

$3^5\times {\mathrm{61}}^1\times {\mathrm{1279}}^1$

素因数の和:1355

約数の個数: 24

約数和(自身を含む): 28887040

約数和(自身を除く): 9928423

約数列:

[1, 3, 9, 27, 61, 81, 183, 243, 549, 1279, 1647, 3837, 4941, 11511, 14823, 34533, 78019, 103599, 234057, 310797, 702171, 2106513, 6319539, 18958617]

約数ペア:

[(1, 18958617), (3, 6319539), (9, 2106513), (27, 702171), (61, 310797), (81, 234057), (183, 103599), (243, 78019), (549, 34533), (1279, 14823), (1647, 11511), (3837, 4941)]