72240651

素因数分解:

$3^2\times 7^2\times {\mathrm{163811}}^1$

素因数の和:163831

約数の個数: 18

約数和(自身を含む): 121384692

約数和(自身を除く): 49144041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 163811, 491433, 1146677, 1474299, 3440031, 8026739, 10320093, 24080217, 72240651]

約数ペア:

[(1, 72240651), (3, 24080217), (7, 10320093), (9, 8026739), (21, 3440031), (49, 1474299), (63, 1146677), (147, 491433), (441, 163811)]