212163021

素因数分解:

$3^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{13417}}^1$

素因数の和:13681

約数の個数: 24

約数和(自身を含む): 351658944

約数和(自身を除く): 139495923

約数列:

[1, 3, 7, 9, 21, 63, 251, 753, 1757, 2259, 5271, 13417, 15813, 40251, 93919, 120753, 281757, 845271, 3367667, 10103001, 23573669, 30309003, 70721007, 212163021]

約数ペア:

[(1, 212163021), (3, 70721007), (7, 30309003), (9, 23573669), (21, 10103001), (63, 3367667), (251, 845271), (753, 281757), (1757, 120753), (2259, 93919), (5271, 40251), (13417, 15813)]