668848971

素因数分解:

$3^1\times 7^4\times {\mathrm{92857}}^1$

素因数の和:92888

約数の個数: 20

約数和(自身を含む): 1040381032

約数和(自身を除く): 371532061

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 92857, 278571, 649999, 1949997, 4549993, 13649979, 31849951, 95549853, 222949657, 668848971]

約数ペア:

[(1, 668848971), (3, 222949657), (7, 95549853), (21, 31849951), (49, 13649979), (147, 4549993), (343, 1949997), (1029, 649999), (2401, 278571), (7203, 92857)]