20398755

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1433}}^1$

素因数の和:1527

約数の個数: 32

約数和(自身を含む): 35654976

約数和(自身を除く): 15256221

約数列:

[1, 3, 5, 13, 15, 39, 65, 73, 195, 219, 365, 949, 1095, 1433, 2847, 4299, 4745, 7165, 14235, 18629, 21495, 55887, 93145, 104609, 279435, 313827, 523045, 1359917, 1569135, 4079751, 6799585, 20398755]

約数ペア:

[(1, 20398755), (3, 6799585), (5, 4079751), (13, 1569135), (15, 1359917), (39, 523045), (65, 313827), (73, 279435), (195, 104609), (219, 93145), (365, 55887), (949, 21495), (1095, 18629), (1433, 14235), (2847, 7165), (4299, 4745)]