18656985

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{11411}}^1$

素因数の和:11528

約数の個数: 16

約数和(自身を含む): 30127680

約数和(自身を除く): 11470695

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 11411, 34233, 57055, 171165, 1243799, 3731397, 6218995, 18656985]

約数ペア:

[(1, 18656985), (3, 6218995), (5, 3731397), (15, 1243799), (109, 171165), (327, 57055), (545, 34233), (1635, 11411)]