20575516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5573}}^1$

素因数の和:5661

約数の個数: 24

約数和(自身を含む): 39330144

約数和(自身を除く): 18754628

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5573, 11146, 22292, 72449, 144898, 289796, 395683, 791366, 1582732, 5143879, 10287758, 20575516]

約数ペア:

[(1, 20575516), (2, 10287758), (4, 5143879), (13, 1582732), (26, 791366), (52, 395683), (71, 289796), (142, 144898), (284, 72449), (923, 22292), (1846, 11146), (3692, 5573)]