20456826

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1609}}^1$

素因数の和:1790

約数の個数: 32

約数和(自身を含む): 44358720

約数和(自身を除く): 23901894

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 163, 326, 489, 978, 1609, 2119, 3218, 4238, 4827, 6357, 9654, 12714, 20917, 41834, 62751, 125502, 262267, 524534, 786801, 1573602, 3409471, 6818942, 10228413, 20456826]

約数ペア:

[(1, 20456826), (2, 10228413), (3, 6818942), (6, 3409471), (13, 1573602), (26, 786801), (39, 524534), (78, 262267), (163, 125502), (326, 62751), (489, 41834), (978, 20917), (1609, 12714), (2119, 9654), (3218, 6357), (4238, 4827)]