261908647

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15391}}^1$

素因数の和:15439

約数の個数: 32

約数和(自身を含む): 372363264

約数和(自身を除く): 110454617

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 143, 187, 221, 1001, 1309, 1547, 2431, 15391, 17017, 107737, 169301, 200083, 261647, 1185107, 1400581, 1831529, 2200913, 2878117, 3401411, 15406391, 20146819, 23809877, 37415521, 261908647]

約数ペア:

[(1, 261908647), (7, 37415521), (11, 23809877), (13, 20146819), (17, 15406391), (77, 3401411), (91, 2878117), (119, 2200913), (143, 1831529), (187, 1400581), (221, 1185107), (1001, 261647), (1309, 200083), (1547, 169301), (2431, 107737), (15391, 17017)]