20682135

素因数分解:

$3^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:469

約数の個数: 40

約数和(自身を含む): 37403520

約数和(自身を除く): 16721385

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 223, 229, 405, 669, 687, 1115, 1145, 2007, 2061, 3345, 3435, 6021, 6183, 10035, 10305, 18063, 18549, 30105, 30915, 51067, 90315, 92745, 153201, 255335, 459603, 766005, 1378809, 2298015, 4136427, 6894045, 20682135]

約数ペア:

[(1, 20682135), (3, 6894045), (5, 4136427), (9, 2298015), (15, 1378809), (27, 766005), (45, 459603), (81, 255335), (135, 153201), (223, 92745), (229, 90315), (405, 51067), (669, 30915), (687, 30105), (1115, 18549), (1145, 18063), (2007, 10305), (2061, 10035), (3345, 6183), (3435, 6021)]