81953739

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1447}}^1$

素因数の和:1520

約数の個数: 48

約数和(自身を含む): 144568320

約数和(自身を除く): 62614581

約数列:

[1, 3, 7, 9, 21, 29, 31, 63, 87, 93, 203, 217, 261, 279, 609, 651, 899, 1447, 1827, 1953, 2697, 4341, 6293, 8091, 10129, 13023, 18879, 30387, 41963, 44857, 56637, 91161, 125889, 134571, 293741, 313999, 377667, 403713, 881223, 941997, 1300853, 2643669, 2825991, 3902559, 9105971, 11707677, 27317913, 81953739]

約数ペア:

[(1, 81953739), (3, 27317913), (7, 11707677), (9, 9105971), (21, 3902559), (29, 2825991), (31, 2643669), (63, 1300853), (87, 941997), (93, 881223), (203, 403713), (217, 377667), (261, 313999), (279, 293741), (609, 134571), (651, 125889), (899, 91161), (1447, 56637), (1827, 44857), (1953, 41963), (2697, 30387), (4341, 18879), (6293, 13023), (8091, 10129)]