18913153

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1487}}^1$

素因数の和:1596

約数の個数: 16

約数和(自身を含む): 22855680

約数和(自身を除く): 3942527

約数列:

[1, 7, 23, 79, 161, 553, 1487, 1817, 10409, 12719, 34201, 117473, 239407, 822311, 2701879, 18913153]

約数ペア:

[(1, 18913153), (7, 2701879), (23, 822311), (79, 239407), (161, 117473), (553, 34201), (1487, 12719), (1817, 10409)]