20691165

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1409}}^1$

素因数の和:1517

約数の個数: 32

約数和(自身を含む): 36547200

約数和(自身を除く): 15856035

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1335, 1409, 2937, 4227, 4895, 7045, 14685, 15499, 21135, 46497, 77495, 125401, 232485, 376203, 627005, 1379411, 1881015, 4138233, 6897055, 20691165]

約数ペア:

[(1, 20691165), (3, 6897055), (5, 4138233), (11, 1881015), (15, 1379411), (33, 627005), (55, 376203), (89, 232485), (165, 125401), (267, 77495), (445, 46497), (979, 21135), (1335, 15499), (1409, 14685), (2937, 7045), (4227, 4895)]