20177781

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{12619}}^1$

素因数の和:12676

約数の個数: 16

約数和(自身を含む): 29682240

約数和(自身を除く): 9504459

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 12619, 37857, 164047, 492141, 517379, 1552137, 6725927, 20177781]

約数ペア:

[(1, 20177781), (3, 6725927), (13, 1552137), (39, 517379), (41, 492141), (123, 164047), (533, 37857), (1599, 12619)]