20278185

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43609}}^1$

素因数の和:43648

約数の個数: 16

約数和(自身を含む): 33492480

約数和(自身を除く): 13214295

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 43609, 130827, 218045, 654135, 1351879, 4055637, 6759395, 20278185]

約数ペア:

[(1, 20278185), (3, 6759395), (5, 4055637), (15, 1351879), (31, 654135), (93, 218045), (155, 130827), (465, 43609)]