21598668

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:396

約数の個数: 144

約数和(自身を含む): 70936320

約数和(自身を除く): 49337652

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 19, 21, 26, 28, 36, 38, 39, 42, 52, 57, 63, 76, 78, 84, 91, 114, 117, 126, 133, 156, 171, 182, 228, 234, 247, 252, 266, 273, 342, 347, 364, 399, 468, 494, 532, 546, 684, 694, 741, 798, 819, 988, 1041, 1092, 1197, 1388, 1482, 1596, 1638, 1729, 2082, 2223, 2394, 2429, 2964, 3123, 3276, 3458, 4164, 4446, 4511, 4788, 4858, 5187, 6246, 6593, 6916, 7287, 8892, 9022, 9716, 10374, 12492, 13186, 13533, 14574, 15561, 18044, 19779, 20748, 21861, 26372, 27066, 29148, 31122, 31577, 39558, 40599, 43722, 46151, 54132, 59337, 62244, 63154, 79116, 81198, 85709, 87444, 92302, 94731, 118674, 126308, 138453, 162396, 171418, 184604, 189462, 237348, 257127, 276906, 284193, 342836, 378924, 415359, 514254, 553812, 568386, 599963, 771381, 830718, 1028508, 1136772, 1199926, 1542762, 1661436, 1799889, 2399852, 3085524, 3599778, 5399667, 7199556, 10799334, 21598668]

約数ペア:

[(1, 21598668), (2, 10799334), (3, 7199556), (4, 5399667), (6, 3599778), (7, 3085524), (9, 2399852), (12, 1799889), (13, 1661436), (14, 1542762), (18, 1199926), (19, 1136772), (21, 1028508), (26, 830718), (28, 771381), (36, 599963), (38, 568386), (39, 553812), (42, 514254), (52, 415359), (57, 378924), (63, 342836), (76, 284193), (78, 276906), (84, 257127), (91, 237348), (114, 189462), (117, 184604), (126, 171418), (133, 162396), (156, 138453), (171, 126308), (182, 118674), (228, 94731), (234, 92302), (247, 87444), (252, 85709), (266, 81198), (273, 79116), (342, 63154), (347, 62244), (364, 59337), (399, 54132), (468, 46151), (494, 43722), (532, 40599), (546, 39558), (684, 31577), (694, 31122), (741, 29148), (798, 27066), (819, 26372), (988, 21861), (1041, 20748), (1092, 19779), (1197, 18044), (1388, 15561), (1482, 14574), (1596, 13533), (1638, 13186), (1729, 12492), (2082, 10374), (2223, 9716), (2394, 9022), (2429, 8892), (2964, 7287), (3123, 6916), (3276, 6593), (3458, 6246), (4164, 5187), (4446, 4858), (4511, 4788)]