40391631

素因数分解:

$3^2\times 7^2\times {\mathrm{91591}}^1$

素因数の和:91611

約数の個数: 18

約数和(自身を含む): 67869672

約数和(自身を除く): 27478041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 91591, 274773, 641137, 824319, 1923411, 4487959, 5770233, 13463877, 40391631]

約数ペア:

[(1, 40391631), (3, 13463877), (7, 5770233), (9, 4487959), (21, 1923411), (49, 824319), (63, 641137), (147, 274773), (441, 91591)]