21151565

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{613}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 26053248

約数和(自身を除く): 4901683

約数列:

[1, 5, 67, 103, 335, 515, 613, 3065, 6901, 34505, 41071, 63139, 205355, 315695, 4230313, 21151565]

約数ペア:

[(1, 21151565), (5, 4230313), (67, 315695), (103, 205355), (335, 63139), (515, 41071), (613, 34505), (3065, 6901)]