20395245

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2551}}^1$

素因数の和:2613

約数の個数: 32

約数和(自身を含む): 36013824

約数和(自身を除く): 15618579

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 195, 205, 533, 615, 1599, 2551, 2665, 7653, 7995, 12755, 33163, 38265, 99489, 104591, 165815, 313773, 497445, 522955, 1359683, 1568865, 4079049, 6798415, 20395245]

約数ペア:

[(1, 20395245), (3, 6798415), (5, 4079049), (13, 1568865), (15, 1359683), (39, 522955), (41, 497445), (65, 313773), (123, 165815), (195, 104591), (205, 99489), (533, 38265), (615, 33163), (1599, 12755), (2551, 7995), (2665, 7653)]