81619307

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1187}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 109486080

約数和(自身を除く): 27866773

約数列:

[1, 7, 11, 19, 47, 77, 133, 209, 329, 517, 893, 1187, 1463, 3619, 6251, 8309, 9823, 13057, 22553, 55789, 68761, 91399, 157871, 248083, 390523, 613679, 1059991, 1736581, 4295753, 7419937, 11659901, 81619307]

約数ペア:

[(1, 81619307), (7, 11659901), (11, 7419937), (19, 4295753), (47, 1736581), (77, 1059991), (133, 613679), (209, 390523), (329, 248083), (517, 157871), (893, 91399), (1187, 68761), (1463, 55789), (3619, 22553), (6251, 13057), (8309, 9823)]