18626517

素因数分解:

$3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:77

約数の個数: 90

約数和(自身を含む): 36788598

約数和(自身を除く): 18162081

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 39, 49, 57, 63, 81, 91, 117, 133, 147, 171, 189, 247, 273, 351, 361, 399, 441, 513, 567, 637, 741, 819, 931, 1053, 1083, 1197, 1323, 1539, 1729, 1911, 2223, 2457, 2527, 2793, 3249, 3591, 3969, 4693, 5187, 5733, 6669, 7371, 7581, 8379, 9747, 10773, 12103, 14079, 15561, 17199, 17689, 20007, 22743, 25137, 29241, 32851, 36309, 42237, 46683, 51597, 53067, 68229, 75411, 98553, 108927, 126711, 140049, 159201, 204687, 229957, 295659, 326781, 380133, 477603, 689871, 886977, 980343, 1432809, 2069613, 2660931, 6208839, 18626517]

約数ペア:

[(1, 18626517), (3, 6208839), (7, 2660931), (9, 2069613), (13, 1432809), (19, 980343), (21, 886977), (27, 689871), (39, 477603), (49, 380133), (57, 326781), (63, 295659), (81, 229957), (91, 204687), (117, 159201), (133, 140049), (147, 126711), (171, 108927), (189, 98553), (247, 75411), (273, 68229), (351, 53067), (361, 51597), (399, 46683), (441, 42237), (513, 36309), (567, 32851), (637, 29241), (741, 25137), (819, 22743), (931, 20007), (1053, 17689), (1083, 17199), (1197, 15561), (1323, 14079), (1539, 12103), (1729, 10773), (1911, 9747), (2223, 8379), (2457, 7581), (2527, 7371), (2793, 6669), (3249, 5733), (3591, 5187), (3969, 4693)]