30981279

素因数分解:

$3^1\times 7^2\times {\mathrm{419}}^1\times {\mathrm{503}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 48263040

約数和(自身を除く): 17281761

約数列:

[1, 3, 7, 21, 49, 147, 419, 503, 1257, 1509, 2933, 3521, 8799, 10563, 20531, 24647, 61593, 73941, 210757, 632271, 1475299, 4425897, 10327093, 30981279]

約数ペア:

[(1, 30981279), (3, 10327093), (7, 4425897), (21, 1475299), (49, 632271), (147, 210757), (419, 73941), (503, 61593), (1257, 24647), (1509, 20531), (2933, 10563), (3521, 8799)]