81620874

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{67679}}^1$

素因数の和:67754

約数の個数: 24

約数和(自身を含む): 179487360

約数和(自身を除く): 97866486

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 402, 603, 1206, 67679, 135358, 203037, 406074, 609111, 1218222, 4534493, 9068986, 13603479, 27206958, 40810437, 81620874]

約数ペア:

[(1, 81620874), (2, 40810437), (3, 27206958), (6, 13603479), (9, 9068986), (18, 4534493), (67, 1218222), (134, 609111), (201, 406074), (402, 203037), (603, 135358), (1206, 67679)]