15902991

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 26426400

約数和(自身を除く): 10523409

約数列:

[1, 3, 9, 13, 29, 39, 43, 87, 109, 117, 129, 261, 327, 377, 387, 559, 981, 1131, 1247, 1417, 1677, 3161, 3393, 3741, 4251, 4687, 5031, 9483, 11223, 12753, 14061, 16211, 28449, 41093, 42183, 48633, 60931, 123279, 135923, 145899, 182793, 369837, 407769, 548379, 1223307, 1766999, 5300997, 15902991]

約数ペア:

[(1, 15902991), (3, 5300997), (9, 1766999), (13, 1223307), (29, 548379), (39, 407769), (43, 369837), (87, 182793), (109, 145899), (117, 135923), (129, 123279), (261, 60931), (327, 48633), (377, 42183), (387, 41093), (559, 28449), (981, 16211), (1131, 14061), (1247, 12753), (1417, 11223), (1677, 9483), (3161, 5031), (3393, 4687), (3741, 4251)]