20408965155

素因数分解:

$3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1370189}}^1$

素因数の和:1370531

約数の個数: 24

約数和(自身を含む): 35482440240

約数和(自身を除く): 15073475085

約数列:

[1, 3, 5, 9, 15, 45, 331, 993, 1655, 2979, 4965, 14895, 1370189, 4110567, 6850945, 12331701, 20552835, 61658505, 453532559, 1360597677, 2267662795, 4081793031, 6802988385, 20408965155]

約数ペア:

[(1, 20408965155), (3, 6802988385), (5, 4081793031), (9, 2267662795), (15, 1360597677), (45, 453532559), (331, 61658505), (993, 20552835), (1655, 12331701), (2979, 6850945), (4965, 4110567), (14895, 1370189)]