21215922

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{13}}^2\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 96

約数和(自身を含む): 54460800

約数和(自身を除く): 33244878

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 61, 78, 91, 98, 122, 147, 169, 182, 183, 273, 294, 338, 343, 366, 427, 507, 546, 637, 686, 793, 854, 1014, 1029, 1183, 1274, 1281, 1586, 1911, 2058, 2366, 2379, 2562, 2989, 3549, 3822, 4459, 4758, 5551, 5978, 7098, 8281, 8918, 8967, 10309, 11102, 13377, 16562, 16653, 17934, 20618, 20923, 24843, 26754, 30927, 33306, 38857, 41846, 49686, 57967, 61854, 62769, 72163, 77714, 115934, 116571, 125538, 144326, 173901, 216489, 233142, 271999, 347802, 432978, 505141, 543998, 815997, 1010282, 1515423, 1631994, 3030846, 3535987, 7071974, 10607961, 21215922]

約数ペア:

[(1, 21215922), (2, 10607961), (3, 7071974), (6, 3535987), (7, 3030846), (13, 1631994), (14, 1515423), (21, 1010282), (26, 815997), (39, 543998), (42, 505141), (49, 432978), (61, 347802), (78, 271999), (91, 233142), (98, 216489), (122, 173901), (147, 144326), (169, 125538), (182, 116571), (183, 115934), (273, 77714), (294, 72163), (338, 62769), (343, 61854), (366, 57967), (427, 49686), (507, 41846), (546, 38857), (637, 33306), (686, 30927), (793, 26754), (854, 24843), (1014, 20923), (1029, 20618), (1183, 17934), (1274, 16653), (1281, 16562), (1586, 13377), (1911, 11102), (2058, 10309), (2366, 8967), (2379, 8918), (2562, 8281), (2989, 7098), (3549, 5978), (3822, 5551), (4459, 4758)]