19571665

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^2\times {\mathrm{73}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 25214760

約数和(自身を除く): 5643095

約数列:

[1, 5, 29, 43, 73, 145, 215, 365, 1247, 1849, 2117, 3139, 6235, 9245, 10585, 15695, 53621, 91031, 134977, 268105, 455155, 674885, 3914333, 19571665]

約数ペア:

[(1, 19571665), (5, 3914333), (29, 674885), (43, 455155), (73, 268105), (145, 134977), (215, 91031), (365, 53621), (1247, 15695), (1849, 10585), (2117, 9245), (3139, 6235)]