19641307

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 36

約数和(自身を含む): 25898520

約数和(自身を除く): 6257213

約数列:

[1, 7, 17, 19, 49, 73, 119, 133, 289, 323, 511, 833, 931, 1241, 1387, 2023, 2261, 3577, 5491, 8687, 9709, 14161, 15827, 21097, 23579, 38437, 60809, 67963, 147679, 165053, 269059, 400843, 1033753, 1155371, 2805901, 19641307]

約数ペア:

[(1, 19641307), (7, 2805901), (17, 1155371), (19, 1033753), (49, 400843), (73, 269059), (119, 165053), (133, 147679), (289, 67963), (323, 60809), (511, 38437), (833, 23579), (931, 21097), (1241, 15827), (1387, 14161), (2023, 9709), (2261, 8687), (3577, 5491)]