20725185

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4621}}^1$

素因数の和:4665

約数の個数: 32

約数和(自身を含む): 37271808

約数和(自身を除く): 16546623

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4621, 13863, 23105, 60073, 69315, 106283, 180219, 300365, 318849, 531415, 901095, 1381679, 1594245, 4145037, 6908395, 20725185]

約数ペア:

[(1, 20725185), (3, 6908395), (5, 4145037), (13, 1594245), (15, 1381679), (23, 901095), (39, 531415), (65, 318849), (69, 300365), (115, 180219), (195, 106283), (299, 69315), (345, 60073), (897, 23105), (1495, 13863), (4485, 4621)]