21836997

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{293}}^1$

素因数の和:339

約数の個数: 54

約数和(自身を含む): 39867282

約数和(自身を除く): 18030285

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 169, 273, 293, 441, 507, 637, 819, 879, 1183, 1521, 1911, 2051, 2637, 3549, 3809, 5733, 6153, 8281, 10647, 11427, 14357, 18459, 24843, 26663, 34281, 43071, 49517, 74529, 79989, 129213, 148551, 186641, 239967, 346619, 445653, 559923, 1039857, 1679769, 2426333, 3119571, 7278999, 21836997]

約数ペア:

[(1, 21836997), (3, 7278999), (7, 3119571), (9, 2426333), (13, 1679769), (21, 1039857), (39, 559923), (49, 445653), (63, 346619), (91, 239967), (117, 186641), (147, 148551), (169, 129213), (273, 79989), (293, 74529), (441, 49517), (507, 43071), (637, 34281), (819, 26663), (879, 24843), (1183, 18459), (1521, 14357), (1911, 11427), (2051, 10647), (2637, 8281), (3549, 6153), (3809, 5733)]