17980893

素因数分解:

$3^3\times 7^2\times {\mathrm{13591}}^1$

素因数の和:13614

約数の個数: 24

約数和(自身を含む): 30989760

約数和(自身を除く): 13008867

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 13591, 40773, 95137, 122319, 285411, 366957, 665959, 856233, 1997877, 2568699, 5993631, 17980893]

約数ペア:

[(1, 17980893), (3, 5993631), (7, 2568699), (9, 1997877), (21, 856233), (27, 665959), (49, 366957), (63, 285411), (147, 122319), (189, 95137), (441, 40773), (1323, 13591)]