30851919

素因数分解:

$3^2\times 7^2\times {\mathrm{69959}}^1$

素因数の和:69979

約数の個数: 18

約数和(自身を含む): 51840360

約数和(自身を除く): 20988441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 69959, 209877, 489713, 629631, 1469139, 3427991, 4407417, 10283973, 30851919]

約数ペア:

[(1, 30851919), (3, 10283973), (7, 4407417), (9, 3427991), (21, 1469139), (49, 629631), (63, 489713), (147, 209877), (441, 69959)]