21913144

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5791}}^1$

素因数の和:5851

約数の個数: 32

約数和(自身を含む): 45872640

約数和(自身を除く): 23959496

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5791, 11582, 23164, 46328, 63701, 127402, 249013, 254804, 498026, 509608, 996052, 1992104, 2739143, 5478286, 10956572, 21913144]

約数ペア:

[(1, 21913144), (2, 10956572), (4, 5478286), (8, 2739143), (11, 1992104), (22, 996052), (43, 509608), (44, 498026), (86, 254804), (88, 249013), (172, 127402), (344, 63701), (473, 46328), (946, 23164), (1892, 11582), (3784, 5791)]