81269874

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{644999}}^1$

素因数の和:645014

約数の個数: 24

約数和(自身を含む): 201240000

約数和(自身を除く): 119970126

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 644999, 1289998, 1934997, 3869994, 4514993, 5804991, 9029986, 11609982, 13544979, 27089958, 40634937, 81269874]

約数ペア:

[(1, 81269874), (2, 40634937), (3, 27089958), (6, 13544979), (7, 11609982), (9, 9029986), (14, 5804991), (18, 4514993), (21, 3869994), (42, 1934997), (63, 1289998), (126, 644999)]