18947115

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4253}}^1$

素因数の和:4281

約数の個数: 40

約数和(自身を含む): 37060848

約数和(自身を除く): 18113733

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4253, 4455, 12759, 21265, 38277, 46783, 63795, 114831, 140349, 191385, 233915, 344493, 421047, 574155, 701745, 1263141, 1722465, 2105235, 3789423, 6315705, 18947115]

約数ペア:

[(1, 18947115), (3, 6315705), (5, 3789423), (9, 2105235), (11, 1722465), (15, 1263141), (27, 701745), (33, 574155), (45, 421047), (55, 344493), (81, 233915), (99, 191385), (135, 140349), (165, 114831), (297, 63795), (405, 46783), (495, 38277), (891, 21265), (1485, 12759), (4253, 4455)]