21135664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:190

約数の個数: 80

約数和(自身を含む): 47809440

約数和(自身を除く): 26673776

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 41, 44, 58, 82, 88, 101, 116, 164, 176, 202, 232, 319, 328, 404, 451, 464, 638, 656, 808, 902, 1111, 1189, 1276, 1616, 1804, 2222, 2378, 2552, 2929, 3608, 4141, 4444, 4756, 5104, 5858, 7216, 8282, 8888, 9512, 11716, 13079, 16564, 17776, 19024, 23432, 26158, 32219, 33128, 45551, 46864, 52316, 64438, 66256, 91102, 104632, 120089, 128876, 182204, 209264, 240178, 257752, 364408, 480356, 515504, 728816, 960712, 1320979, 1921424, 2641958, 5283916, 10567832, 21135664]

約数ペア:

[(1, 21135664), (2, 10567832), (4, 5283916), (8, 2641958), (11, 1921424), (16, 1320979), (22, 960712), (29, 728816), (41, 515504), (44, 480356), (58, 364408), (82, 257752), (88, 240178), (101, 209264), (116, 182204), (164, 128876), (176, 120089), (202, 104632), (232, 91102), (319, 66256), (328, 64438), (404, 52316), (451, 46864), (464, 45551), (638, 33128), (656, 32219), (808, 26158), (902, 23432), (1111, 19024), (1189, 17776), (1276, 16564), (1616, 13079), (1804, 11716), (2222, 9512), (2378, 8888), (2552, 8282), (2929, 7216), (3608, 5858), (4141, 5104), (4444, 4756)]