131561521

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12149}}^1$

素因数の和:12193

約数の個数: 24

約数和(自身を含む): 174522600

約数和(自身を除く): 42961079

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 637, 833, 1547, 10829, 12149, 85043, 157937, 206533, 595301, 1105559, 1445731, 2684929, 7738913, 10120117, 18794503, 131561521]

約数ペア:

[(1, 131561521), (7, 18794503), (13, 10120117), (17, 7738913), (49, 2684929), (91, 1445731), (119, 1105559), (221, 595301), (637, 206533), (833, 157937), (1547, 85043), (10829, 12149)]