28737639

素因数分解:

$3^3\times 7^1\times {\mathrm{383}}^1\times {\mathrm{397}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 48906240

約数和(自身を除く): 20168601

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 383, 397, 1149, 1191, 2681, 2779, 3447, 3573, 8043, 8337, 10341, 10719, 24129, 25011, 72387, 75033, 152051, 456153, 1064357, 1368459, 3193071, 4105377, 9579213, 28737639]

約数ペア:

[(1, 28737639), (3, 9579213), (7, 4105377), (9, 3193071), (21, 1368459), (27, 1064357), (63, 456153), (189, 152051), (383, 75033), (397, 72387), (1149, 25011), (1191, 24129), (2681, 10719), (2779, 10341), (3447, 8337), (3573, 8043)]