21488852

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9967}}^1$

素因数の和:9996

約数の個数: 36

約数和(自身を含む): 47726784

約数和(自身を除く): 26237932

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9967, 19934, 39868, 69769, 109637, 139538, 219274, 279076, 438548, 488383, 767459, 976766, 1534918, 1953532, 3069836, 5372213, 10744426, 21488852]

約数ペア:

[(1, 21488852), (2, 10744426), (4, 5372213), (7, 3069836), (11, 1953532), (14, 1534918), (22, 976766), (28, 767459), (44, 488383), (49, 438548), (77, 279076), (98, 219274), (154, 139538), (196, 109637), (308, 69769), (539, 39868), (1078, 19934), (2156, 9967)]