20191605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1867}}^1$

素因数の和:1985

約数の個数: 32

約数和(自身を含む): 37300224

約数和(自身を除く): 17108619

約数列:

[1, 3, 5, 7, 15, 21, 35, 103, 105, 309, 515, 721, 1545, 1867, 2163, 3605, 5601, 9335, 10815, 13069, 28005, 39207, 65345, 192301, 196035, 576903, 961505, 1346107, 2884515, 4038321, 6730535, 20191605]

約数ペア:

[(1, 20191605), (3, 6730535), (5, 4038321), (7, 2884515), (15, 1346107), (21, 961505), (35, 576903), (103, 196035), (105, 192301), (309, 65345), (515, 39207), (721, 28005), (1545, 13069), (1867, 10815), (2163, 9335), (3605, 5601)]