18866830

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26573}}^1$

素因数の和:26651

約数の個数: 16

約数和(自身を含む): 34439904

約数和(自身を除く): 15573074

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 26573, 53146, 132865, 265730, 1886683, 3773366, 9433415, 18866830]

約数ペア:

[(1, 18866830), (2, 9433415), (5, 3773366), (10, 1886683), (71, 265730), (142, 132865), (355, 53146), (710, 26573)]