18862945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{709}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 24077520

約数和(自身を除く): 5214575

約数列:

[1, 5, 17, 85, 313, 709, 1565, 3545, 5321, 12053, 26605, 60265, 221917, 1109585, 3772589, 18862945]

約数ペア:

[(1, 18862945), (5, 3772589), (17, 1109585), (85, 221917), (313, 60265), (709, 26605), (1565, 12053), (3545, 5321)]