21561732

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1087}}^1$

素因数の和:1145

約数の個数: 72

約数和(自身を含む): 59404800

約数和(自身を除く): 37843068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 171, 174, 228, 261, 342, 348, 522, 551, 684, 1044, 1087, 1102, 1653, 2174, 2204, 3261, 3306, 4348, 4959, 6522, 6612, 9783, 9918, 13044, 19566, 19836, 20653, 31523, 39132, 41306, 61959, 63046, 82612, 94569, 123918, 126092, 185877, 189138, 247836, 283707, 371754, 378276, 567414, 598937, 743508, 1134828, 1197874, 1796811, 2395748, 3593622, 5390433, 7187244, 10780866, 21561732]

約数ペア:

[(1, 21561732), (2, 10780866), (3, 7187244), (4, 5390433), (6, 3593622), (9, 2395748), (12, 1796811), (18, 1197874), (19, 1134828), (29, 743508), (36, 598937), (38, 567414), (57, 378276), (58, 371754), (76, 283707), (87, 247836), (114, 189138), (116, 185877), (171, 126092), (174, 123918), (228, 94569), (261, 82612), (342, 63046), (348, 61959), (522, 41306), (551, 39132), (684, 31523), (1044, 20653), (1087, 19836), (1102, 19566), (1653, 13044), (2174, 9918), (2204, 9783), (3261, 6612), (3306, 6522), (4348, 4959)]