21381272

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{1061}}^1$

素因数の和:1307

約数の個数: 32

約数和(自身を含む): 43966800

約数和(自身を除く): 22585528

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 229, 458, 916, 1061, 1832, 2122, 2519, 4244, 5038, 8488, 10076, 11671, 20152, 23342, 46684, 93368, 242969, 485938, 971876, 1943752, 2672659, 5345318, 10690636, 21381272]

約数ペア:

[(1, 21381272), (2, 10690636), (4, 5345318), (8, 2672659), (11, 1943752), (22, 971876), (44, 485938), (88, 242969), (229, 93368), (458, 46684), (916, 23342), (1061, 20152), (1832, 11671), (2122, 10076), (2519, 8488), (4244, 5038)]