21286488

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 33871272

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 113, 141, 167, 188, 226, 282, 334, 339, 376, 452, 501, 564, 668, 678, 904, 1002, 1128, 1336, 1356, 2004, 2712, 4008, 5311, 7849, 10622, 15698, 15933, 18871, 21244, 23547, 31396, 31866, 37742, 42488, 47094, 56613, 62792, 63732, 75484, 94188, 113226, 127464, 150968, 188376, 226452, 452904, 886937, 1773874, 2660811, 3547748, 5321622, 7095496, 10643244, 21286488]

約数ペア:

[(1, 21286488), (2, 10643244), (3, 7095496), (4, 5321622), (6, 3547748), (8, 2660811), (12, 1773874), (24, 886937), (47, 452904), (94, 226452), (113, 188376), (141, 150968), (167, 127464), (188, 113226), (226, 94188), (282, 75484), (334, 63732), (339, 62792), (376, 56613), (452, 47094), (501, 42488), (564, 37742), (668, 31866), (678, 31396), (904, 23547), (1002, 21244), (1128, 18871), (1336, 15933), (1356, 15698), (2004, 10622), (2712, 7849), (4008, 5311)]