1557262679

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{81281}}^1$

素因数の和:81335

約数の個数: 24

約数和(自身を含む): 2001487968

約数和(自身を除く): 444225289

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 833, 1127, 2737, 19159, 81281, 568967, 1381777, 1869463, 3982769, 9672439, 13086241, 31780871, 67707073, 91603687, 222466097, 1557262679]

約数ペア:

[(1, 1557262679), (7, 222466097), (17, 91603687), (23, 67707073), (49, 31780871), (119, 13086241), (161, 9672439), (391, 3982769), (833, 1869463), (1127, 1381777), (2737, 568967), (19159, 81281)]