12991587

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 21187584

約数和(自身を除く): 8195997

約数列:

[1, 3, 7, 17, 21, 51, 119, 151, 241, 357, 453, 723, 1057, 1687, 2567, 3171, 4097, 5061, 7701, 12291, 17969, 28679, 36391, 53907, 86037, 109173, 254737, 618647, 764211, 1855941, 4330529, 12991587]

約数ペア:

[(1, 12991587), (3, 4330529), (7, 1855941), (17, 764211), (21, 618647), (51, 254737), (119, 109173), (151, 86037), (241, 53907), (357, 36391), (453, 28679), (723, 17969), (1057, 12291), (1687, 7701), (2567, 5061), (3171, 4097)]