20550345

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 34028544

約数和(自身を除く): 13478199

約数列:

[1, 3, 5, 15, 43, 129, 151, 211, 215, 453, 633, 645, 755, 1055, 2265, 3165, 6493, 9073, 19479, 27219, 31861, 32465, 45365, 95583, 97395, 136095, 159305, 477915, 1370023, 4110069, 6850115, 20550345]

約数ペア:

[(1, 20550345), (3, 6850115), (5, 4110069), (15, 1370023), (43, 477915), (129, 159305), (151, 136095), (211, 97395), (215, 95583), (453, 45365), (633, 32465), (645, 31861), (755, 27219), (1055, 19479), (2265, 9073), (3165, 6493)]