18911151

素因数分解:

$3^4\times 7^1\times {\mathrm{33353}}^1$

素因数の和:33372

約数の個数: 20

約数和(自身を含む): 32286672

約数和(自身を除く): 13375521

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 33353, 100059, 233471, 300177, 700413, 900531, 2101239, 2701593, 6303717, 18911151]

約数ペア:

[(1, 18911151), (3, 6303717), (7, 2701593), (9, 2101239), (21, 900531), (27, 700413), (63, 300177), (81, 233471), (189, 100059), (567, 33353)]