20218542405

素因数分解:

$3^1\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{1240021}}^1$

素因数の和:1241116

約数の個数: 16

約数和(自身を含む): 32379454464

約数和(自身を除く): 12160912059

約数列:

[1, 3, 5, 15, 1087, 3261, 5435, 16305, 1240021, 3720063, 6200105, 18600315, 1347902827, 4043708481, 6739514135, 20218542405]

約数ペア:

[(1, 20218542405), (3, 6739514135), (5, 4043708481), (15, 1347902827), (1087, 18600315), (3261, 6200105), (5435, 3720063), (16305, 1240021)]