19942605

素因数分解:

$3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1201}}^1$

素因数の和:1259

約数の個数: 40

約数和(自身を含む): 36651384

約数和(自身を除く): 16708779

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 81, 123, 135, 205, 369, 405, 615, 1107, 1201, 1845, 3321, 3603, 5535, 6005, 10809, 16605, 18015, 32427, 49241, 54045, 97281, 147723, 162135, 246205, 443169, 486405, 738615, 1329507, 2215845, 3988521, 6647535, 19942605]

約数ペア:

[(1, 19942605), (3, 6647535), (5, 3988521), (9, 2215845), (15, 1329507), (27, 738615), (41, 486405), (45, 443169), (81, 246205), (123, 162135), (135, 147723), (205, 97281), (369, 54045), (405, 49241), (615, 32427), (1107, 18015), (1201, 16605), (1845, 10809), (3321, 6005), (3603, 5535)]