20138805

素因数分解:

$3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1439}}^1$

素因数の和:1761

約数の個数: 24

約数和(自身を含む): 35043840

約数和(自身を除く): 14905035

約数列:

[1, 3, 5, 9, 15, 45, 311, 933, 1439, 1555, 2799, 4317, 4665, 7195, 12951, 13995, 21585, 64755, 447529, 1342587, 2237645, 4027761, 6712935, 20138805]

約数ペア:

[(1, 20138805), (3, 6712935), (5, 4027761), (9, 2237645), (15, 1342587), (45, 447529), (311, 64755), (933, 21585), (1439, 13995), (1555, 12951), (2799, 7195), (4317, 4665)]