16997445

素因数分解:

$3^4\times 5^1\times {\mathrm{41969}}^1$

素因数の和:41986

約数の個数: 20

約数和(自身を含む): 30470220

約数和(自身を除く): 13472775

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 41969, 125907, 209845, 377721, 629535, 1133163, 1888605, 3399489, 5665815, 16997445]

約数ペア:

[(1, 16997445), (3, 5665815), (5, 3399489), (9, 1888605), (15, 1133163), (27, 629535), (45, 377721), (81, 209845), (135, 125907), (405, 41969)]