20417445

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19727}}^1$

素因数の和:19761

約数の個数: 24

約数和(自身を含む): 36930816

約数和(自身を除く): 16513371

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19727, 59181, 98635, 177543, 295905, 453721, 887715, 1361163, 2268605, 4083489, 6805815, 20417445]

約数ペア:

[(1, 20417445), (3, 6805815), (5, 4083489), (9, 2268605), (15, 1361163), (23, 887715), (45, 453721), (69, 295905), (115, 177543), (207, 98635), (345, 59181), (1035, 19727)]