21456396

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{127}}^1$

素因数の和:188

約数の個数: 108

約数和(自身を含む): 62130432

約数和(自身を除く): 40674036

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 127, 156, 171, 228, 234, 247, 254, 342, 361, 381, 468, 494, 508, 684, 722, 741, 762, 988, 1083, 1143, 1444, 1482, 1524, 1651, 2166, 2223, 2286, 2413, 2964, 3249, 3302, 4332, 4446, 4572, 4693, 4826, 4953, 6498, 6604, 7239, 8892, 9386, 9652, 9906, 12996, 14079, 14478, 14859, 18772, 19812, 21717, 28158, 28956, 29718, 31369, 42237, 43434, 45847, 56316, 59436, 62738, 84474, 86868, 91694, 94107, 125476, 137541, 168948, 183388, 188214, 275082, 282321, 376428, 412623, 550164, 564642, 596011, 825246, 1129284, 1192022, 1650492, 1788033, 2384044, 3576066, 5364099, 7152132, 10728198, 21456396]

約数ペア:

[(1, 21456396), (2, 10728198), (3, 7152132), (4, 5364099), (6, 3576066), (9, 2384044), (12, 1788033), (13, 1650492), (18, 1192022), (19, 1129284), (26, 825246), (36, 596011), (38, 564642), (39, 550164), (52, 412623), (57, 376428), (76, 282321), (78, 275082), (114, 188214), (117, 183388), (127, 168948), (156, 137541), (171, 125476), (228, 94107), (234, 91694), (247, 86868), (254, 84474), (342, 62738), (361, 59436), (381, 56316), (468, 45847), (494, 43434), (508, 42237), (684, 31369), (722, 29718), (741, 28956), (762, 28158), (988, 21717), (1083, 19812), (1143, 18772), (1444, 14859), (1482, 14478), (1524, 14079), (1651, 12996), (2166, 9906), (2223, 9652), (2286, 9386), (2413, 8892), (2964, 7239), (3249, 6604), (3302, 6498), (4332, 4953), (4446, 4826), (4572, 4693)]