21104397

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1129}}^1$

素因数の和:1233

約数の個数: 24

約数和(自身を含む): 31965440

約数和(自身を除く): 10861043

約数列:

[1, 3, 9, 31, 67, 93, 201, 279, 603, 1129, 2077, 3387, 6231, 10161, 18693, 34999, 75643, 104997, 226929, 314991, 680787, 2344933, 7034799, 21104397]

約数ペア:

[(1, 21104397), (3, 7034799), (9, 2344933), (31, 680787), (67, 314991), (93, 226929), (201, 104997), (279, 75643), (603, 34999), (1129, 18693), (2077, 10161), (3387, 6231)]