18741531

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4129}}^1$

素因数の和:4238

約数の個数: 16

約数和(自身を含む): 26762400

約数和(自身を除く): 8020869

約数列:

[1, 3, 17, 51, 89, 267, 1513, 4129, 4539, 12387, 70193, 210579, 367481, 1102443, 6247177, 18741531]

約数ペア:

[(1, 18741531), (3, 6247177), (17, 1102443), (51, 367481), (89, 210579), (267, 70193), (1513, 12387), (4129, 4539)]