21039326

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{673}}^1$

素因数の和:729

約数の個数: 48

約数和(自身を含む): 41491440

約数和(自身を除く): 20452114

約数列:

[1, 2, 7, 11, 14, 22, 29, 49, 58, 77, 98, 154, 203, 319, 406, 539, 638, 673, 1078, 1346, 1421, 2233, 2842, 4466, 4711, 7403, 9422, 14806, 15631, 19517, 31262, 32977, 39034, 51821, 65954, 103642, 136619, 214687, 273238, 362747, 429374, 725494, 956333, 1502809, 1912666, 3005618, 10519663, 21039326]

約数ペア:

[(1, 21039326), (2, 10519663), (7, 3005618), (11, 1912666), (14, 1502809), (22, 956333), (29, 725494), (49, 429374), (58, 362747), (77, 273238), (98, 214687), (154, 136619), (203, 103642), (319, 65954), (406, 51821), (539, 39034), (638, 32977), (673, 31262), (1078, 19517), (1346, 15631), (1421, 14806), (2233, 9422), (2842, 7403), (4466, 4711)]