20745075

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21277}}^1$

素因数の和:21303

約数の個数: 24

約数和(自身を含む): 36938608

約数和(自身を除く): 16193533

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21277, 63831, 106385, 276601, 319155, 531925, 829803, 1383005, 1595775, 4149015, 6915025, 20745075]

約数ペア:

[(1, 20745075), (3, 6915025), (5, 4149015), (13, 1595775), (15, 1383005), (25, 829803), (39, 531925), (65, 319155), (75, 276601), (195, 106385), (325, 63831), (975, 21277)]