211345615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{991}}^1$

素因数の和:1219

約数の個数: 32

約数和(自身を含む): 290981376

約数和(自身を除く): 79635761

約数列:

[1, 5, 13, 17, 65, 85, 193, 221, 965, 991, 1105, 2509, 3281, 4955, 12545, 12883, 16405, 16847, 42653, 64415, 84235, 191263, 213265, 219011, 956315, 1095055, 2486419, 3251471, 12432095, 16257355, 42269123, 211345615]

約数ペア:

[(1, 211345615), (5, 42269123), (13, 16257355), (17, 12432095), (65, 3251471), (85, 2486419), (193, 1095055), (221, 956315), (965, 219011), (991, 213265), (1105, 191263), (2509, 84235), (3281, 64415), (4955, 42653), (12545, 16847), (12883, 16405)]