17564939

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1381}}^1$

素因数の和:1490

約数の個数: 16

約数和(自身を含む): 21227520

約数和(自身を除く): 3662581

約数列:

[1, 7, 23, 79, 161, 553, 1381, 1817, 9667, 12719, 31763, 109099, 222341, 763693, 2509277, 17564939]

約数ペア:

[(1, 17564939), (7, 2509277), (23, 763693), (79, 222341), (161, 109099), (553, 31763), (1381, 12719), (1817, 9667)]