30971997

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 55644160

約数和(自身を除く): 24672163

約数列:

[1, 3, 7, 9, 21, 27, 37, 43, 63, 103, 111, 129, 189, 259, 301, 309, 333, 387, 721, 777, 903, 927, 999, 1161, 1591, 2163, 2331, 2709, 2781, 3811, 4429, 4773, 6489, 6993, 8127, 11137, 11433, 13287, 14319, 19467, 26677, 31003, 33411, 34299, 39861, 42957, 80031, 93009, 100233, 102897, 119583, 163873, 240093, 279027, 300699, 491619, 720279, 837081, 1147111, 1474857, 3441333, 4424571, 10323999, 30971997]

約数ペア:

[(1, 30971997), (3, 10323999), (7, 4424571), (9, 3441333), (21, 1474857), (27, 1147111), (37, 837081), (43, 720279), (63, 491619), (103, 300699), (111, 279027), (129, 240093), (189, 163873), (259, 119583), (301, 102897), (309, 100233), (333, 93009), (387, 80031), (721, 42957), (777, 39861), (903, 34299), (927, 33411), (999, 31003), (1161, 26677), (1591, 19467), (2163, 14319), (2331, 13287), (2709, 11433), (2781, 11137), (3811, 8127), (4429, 6993), (4773, 6489)]