217194621

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1471}}^1$

素因数の和:1649

約数の個数: 32

約数和(自身を含む): 339148800

約数和(自身を除く): 121954179

約数列:

[1, 3, 7, 21, 79, 89, 237, 267, 553, 623, 1471, 1659, 1869, 4413, 7031, 10297, 21093, 30891, 49217, 116209, 130919, 147651, 348627, 392757, 813463, 916433, 2440389, 2749299, 10342601, 31027803, 72398207, 217194621]

約数ペア:

[(1, 217194621), (3, 72398207), (7, 31027803), (21, 10342601), (79, 2749299), (89, 2440389), (237, 916433), (267, 813463), (553, 392757), (623, 348627), (1471, 147651), (1659, 130919), (1869, 116209), (4413, 49217), (7031, 30891), (10297, 21093)]