12845721

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4051}}^1$

素因数の和:4212

約数の個数: 16

約数和(自身を含む): 19708928

約数和(自身を除く): 6863207

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 4051, 12153, 28357, 85071, 611701, 1835103, 4281907, 12845721]

約数ペア:

[(1, 12845721), (3, 4281907), (7, 1835103), (21, 611701), (151, 85071), (453, 28357), (1057, 12153), (3171, 4051)]