21491316

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7753}}^1$

素因数の和:7781

約数の個数: 72

約数和(自身を含む): 67738944

約数和(自身を除く): 46247628

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 126, 132, 154, 198, 231, 252, 308, 396, 462, 693, 924, 1386, 2772, 7753, 15506, 23259, 31012, 46518, 54271, 69777, 85283, 93036, 108542, 139554, 162813, 170566, 217084, 255849, 279108, 325626, 341132, 488439, 511698, 596981, 651252, 767547, 976878, 1023396, 1193962, 1535094, 1790943, 1953756, 2387924, 3070188, 3581886, 5372829, 7163772, 10745658, 21491316]

約数ペア:

[(1, 21491316), (2, 10745658), (3, 7163772), (4, 5372829), (6, 3581886), (7, 3070188), (9, 2387924), (11, 1953756), (12, 1790943), (14, 1535094), (18, 1193962), (21, 1023396), (22, 976878), (28, 767547), (33, 651252), (36, 596981), (42, 511698), (44, 488439), (63, 341132), (66, 325626), (77, 279108), (84, 255849), (99, 217084), (126, 170566), (132, 162813), (154, 139554), (198, 108542), (231, 93036), (252, 85283), (308, 69777), (396, 54271), (462, 46518), (693, 31012), (924, 23259), (1386, 15506), (2772, 7753)]