21331566

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1223}}^1$

素因数の和:1270

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 31545234

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 27, 34, 38, 51, 54, 57, 102, 114, 153, 171, 306, 323, 342, 459, 513, 646, 918, 969, 1026, 1223, 1938, 2446, 2907, 3669, 5814, 7338, 8721, 11007, 17442, 20791, 22014, 23237, 33021, 41582, 46474, 62373, 66042, 69711, 124746, 139422, 187119, 209133, 374238, 395029, 418266, 561357, 627399, 790058, 1122714, 1185087, 1254798, 2370174, 3555261, 7110522, 10665783, 21331566]

約数ペア:

[(1, 21331566), (2, 10665783), (3, 7110522), (6, 3555261), (9, 2370174), (17, 1254798), (18, 1185087), (19, 1122714), (27, 790058), (34, 627399), (38, 561357), (51, 418266), (54, 395029), (57, 374238), (102, 209133), (114, 187119), (153, 139422), (171, 124746), (306, 69711), (323, 66042), (342, 62373), (459, 46474), (513, 41582), (646, 33021), (918, 23237), (969, 22014), (1026, 20791), (1223, 17442), (1938, 11007), (2446, 8721), (2907, 7338), (3669, 5814)]