18781158

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{881}}^1$

素因数の和:933

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 26941722

約数列:

[1, 2, 3, 6, 11, 17, 19, 22, 33, 34, 38, 51, 57, 66, 102, 114, 187, 209, 323, 374, 418, 561, 627, 646, 881, 969, 1122, 1254, 1762, 1938, 2643, 3553, 5286, 7106, 9691, 10659, 14977, 16739, 19382, 21318, 29073, 29954, 33478, 44931, 50217, 58146, 89862, 100434, 164747, 184129, 284563, 329494, 368258, 494241, 552387, 569126, 853689, 988482, 1104774, 1707378, 3130193, 6260386, 9390579, 18781158]

約数ペア:

[(1, 18781158), (2, 9390579), (3, 6260386), (6, 3130193), (11, 1707378), (17, 1104774), (19, 988482), (22, 853689), (33, 569126), (34, 552387), (38, 494241), (51, 368258), (57, 329494), (66, 284563), (102, 184129), (114, 164747), (187, 100434), (209, 89862), (323, 58146), (374, 50217), (418, 44931), (561, 33478), (627, 29954), (646, 29073), (881, 21318), (969, 19382), (1122, 16739), (1254, 14977), (1762, 10659), (1938, 9691), (2643, 7106), (3553, 5286)]