21632871

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 32401152

約数和(自身を除く): 10768281

約数列:

[1, 3, 13, 39, 41, 83, 123, 163, 249, 489, 533, 1079, 1599, 2119, 3237, 3403, 6357, 6683, 10209, 13529, 20049, 40587, 44239, 86879, 132717, 175877, 260637, 527631, 554689, 1664067, 7210957, 21632871]

約数ペア:

[(1, 21632871), (3, 7210957), (13, 1664067), (39, 554689), (41, 527631), (83, 260637), (123, 175877), (163, 132717), (249, 86879), (489, 44239), (533, 40587), (1079, 20049), (1599, 13529), (2119, 10209), (3237, 6683), (3403, 6357)]