857945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 1183680

約数和(自身を除く): 325735

約数列:

[1, 5, 11, 19, 55, 95, 209, 821, 1045, 4105, 9031, 15599, 45155, 77995, 171589, 857945]

約数ペア:

[(1, 857945), (5, 171589), (11, 77995), (19, 45155), (55, 15599), (95, 9031), (209, 4105), (821, 1045)]