20952741

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{821}}^1$

素因数の和:1052

約数の個数: 16

約数和(自身を含む): 28723968

約数和(自身を除く): 7771227

約数列:

[1, 3, 47, 141, 181, 543, 821, 2463, 8507, 25521, 38587, 115761, 148601, 445803, 6984247, 20952741]

約数ペア:

[(1, 20952741), (3, 6984247), (47, 445803), (141, 148601), (181, 115761), (543, 38587), (821, 25521), (2463, 8507)]