21226212

素因数分解:

$2^2\times 3^4\times 7^3\times {\mathrm{191}}^1$

素因数の和:228

約数の個数: 120

約数和(自身を含む): 65049600

約数和(自身を除く): 43823388

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 81, 84, 98, 108, 126, 147, 162, 189, 191, 196, 252, 294, 324, 343, 378, 382, 441, 567, 573, 588, 686, 756, 764, 882, 1029, 1134, 1146, 1323, 1337, 1372, 1719, 1764, 2058, 2268, 2292, 2646, 2674, 3087, 3438, 3969, 4011, 4116, 5157, 5292, 5348, 6174, 6876, 7938, 8022, 9261, 9359, 10314, 12033, 12348, 15471, 15876, 16044, 18522, 18718, 20628, 24066, 27783, 28077, 30942, 36099, 37044, 37436, 48132, 55566, 56154, 61884, 65513, 72198, 84231, 108297, 111132, 112308, 131026, 144396, 168462, 196539, 216594, 252693, 262052, 336924, 393078, 433188, 505386, 589617, 758079, 786156, 1010772, 1179234, 1516158, 1768851, 2358468, 3032316, 3537702, 5306553, 7075404, 10613106, 21226212]

約数ペア:

[(1, 21226212), (2, 10613106), (3, 7075404), (4, 5306553), (6, 3537702), (7, 3032316), (9, 2358468), (12, 1768851), (14, 1516158), (18, 1179234), (21, 1010772), (27, 786156), (28, 758079), (36, 589617), (42, 505386), (49, 433188), (54, 393078), (63, 336924), (81, 262052), (84, 252693), (98, 216594), (108, 196539), (126, 168462), (147, 144396), (162, 131026), (189, 112308), (191, 111132), (196, 108297), (252, 84231), (294, 72198), (324, 65513), (343, 61884), (378, 56154), (382, 55566), (441, 48132), (567, 37436), (573, 37044), (588, 36099), (686, 30942), (756, 28077), (764, 27783), (882, 24066), (1029, 20628), (1134, 18718), (1146, 18522), (1323, 16044), (1337, 15876), (1372, 15471), (1719, 12348), (1764, 12033), (2058, 10314), (2268, 9359), (2292, 9261), (2646, 8022), (2674, 7938), (3087, 6876), (3438, 6174), (3969, 5348), (4011, 5292), (4116, 5157)]