21012572

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2281}}^1$

素因数の和:2346

約数の個数: 36

約数和(自身を含む): 43704864

約数和(自身を除く): 22692292

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 658, 1316, 2281, 2303, 4562, 4606, 9124, 9212, 15967, 31934, 63868, 107207, 111769, 214414, 223538, 428828, 447076, 750449, 1500898, 3001796, 5253143, 10506286, 21012572]

約数ペア:

[(1, 21012572), (2, 10506286), (4, 5253143), (7, 3001796), (14, 1500898), (28, 750449), (47, 447076), (49, 428828), (94, 223538), (98, 214414), (188, 111769), (196, 107207), (329, 63868), (658, 31934), (1316, 15967), (2281, 9212), (2303, 9124), (4562, 4606)]