21256554

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 52093440

約数和(自身を除く): 30836886

約数列:

[1, 2, 3, 6, 11, 19, 22, 23, 33, 38, 46, 57, 66, 67, 69, 114, 121, 134, 138, 201, 209, 242, 253, 363, 402, 418, 437, 506, 627, 726, 737, 759, 874, 1254, 1273, 1311, 1474, 1518, 1541, 2211, 2299, 2546, 2622, 2783, 3082, 3819, 4422, 4598, 4623, 4807, 5566, 6897, 7638, 8107, 8349, 9246, 9614, 13794, 14003, 14421, 16214, 16698, 16951, 24321, 28006, 28842, 29279, 33902, 42009, 48642, 50853, 52877, 58558, 84018, 87837, 101706, 105754, 154033, 158631, 175674, 186461, 308066, 317262, 322069, 372922, 462099, 559383, 644138, 924198, 966207, 1118766, 1932414, 3542759, 7085518, 10628277, 21256554]

約数ペア:

[(1, 21256554), (2, 10628277), (3, 7085518), (6, 3542759), (11, 1932414), (19, 1118766), (22, 966207), (23, 924198), (33, 644138), (38, 559383), (46, 462099), (57, 372922), (66, 322069), (67, 317262), (69, 308066), (114, 186461), (121, 175674), (134, 158631), (138, 154033), (201, 105754), (209, 101706), (242, 87837), (253, 84018), (363, 58558), (402, 52877), (418, 50853), (437, 48642), (506, 42009), (627, 33902), (726, 29279), (737, 28842), (759, 28006), (874, 24321), (1254, 16951), (1273, 16698), (1311, 16214), (1474, 14421), (1518, 14003), (1541, 13794), (2211, 9614), (2299, 9246), (2546, 8349), (2622, 8107), (2783, 7638), (3082, 6897), (3819, 5566), (4422, 4807), (4598, 4623)]