13128031

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{239}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 16416000

約数和(自身を除く): 3287969

約数列:

[1, 7, 19, 49, 59, 133, 239, 413, 931, 1121, 1673, 2891, 4541, 7847, 11711, 14101, 31787, 54929, 98707, 222509, 267919, 690949, 1875433, 13128031]

約数ペア:

[(1, 13128031), (7, 1875433), (19, 690949), (49, 267919), (59, 222509), (133, 98707), (239, 54929), (413, 31787), (931, 14101), (1121, 11711), (1673, 7847), (2891, 4541)]