81559761

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1153}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 122970240

約数和(自身を除く): 41410479

約数列:

[1, 3, 17, 19, 51, 57, 73, 219, 323, 969, 1153, 1241, 1387, 3459, 3723, 4161, 19601, 21907, 23579, 58803, 65721, 70737, 84169, 252507, 372419, 1117257, 1430873, 1599211, 4292619, 4797633, 27186587, 81559761]

約数ペア:

[(1, 81559761), (3, 27186587), (17, 4797633), (19, 4292619), (51, 1599211), (57, 1430873), (73, 1117257), (219, 372419), (323, 252507), (969, 84169), (1153, 70737), (1241, 65721), (1387, 58803), (3459, 23579), (3723, 21907), (4161, 19601)]