18664490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{143573}}^1$

素因数の和:143593

約数の個数: 16

約数和(自身を含む): 36180648

約数和(自身を除く): 17516158

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 143573, 287146, 717865, 1435730, 1866449, 3732898, 9332245, 18664490]

約数ペア:

[(1, 18664490), (2, 9332245), (5, 3732898), (10, 1866449), (13, 1435730), (26, 717865), (65, 287146), (130, 143573)]