12357215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 17309376

約数和(自身を除く): 4952161

約数列:

[1, 5, 13, 17, 53, 65, 85, 211, 221, 265, 689, 901, 1055, 1105, 2743, 3445, 3587, 4505, 11183, 11713, 13715, 17935, 46631, 55915, 58565, 145379, 190111, 233155, 726895, 950555, 2471443, 12357215]

約数ペア:

[(1, 12357215), (5, 2471443), (13, 950555), (17, 726895), (53, 233155), (65, 190111), (85, 145379), (211, 58565), (221, 55915), (265, 46631), (689, 17935), (901, 13715), (1055, 11713), (1105, 11183), (2743, 4505), (3445, 3587)]