20394855

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11621}}^1$

素因数の和:11648

約数の個数: 32

約数和(自身を含む): 39049920

約数和(自身を除く): 18655065

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11621, 34863, 58105, 104589, 151073, 174315, 313767, 453219, 522945, 755365, 1359657, 1568835, 2266095, 4078971, 6798285, 20394855]

約数ペア:

[(1, 20394855), (3, 6798285), (5, 4078971), (9, 2266095), (13, 1568835), (15, 1359657), (27, 755365), (39, 522945), (45, 453219), (65, 313767), (117, 174315), (135, 151073), (195, 104589), (351, 58105), (585, 34863), (1755, 11621)]