21008812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{10159}}^1$

素因数の和:10221

約数の個数: 24

約数和(自身を含む): 40965120

約数和(自身を除く): 19956308

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 10159, 20318, 40636, 111749, 223498, 446996, 477473, 954946, 1909892, 5252203, 10504406, 21008812]

約数ペア:

[(1, 21008812), (2, 10504406), (4, 5252203), (11, 1909892), (22, 954946), (44, 477473), (47, 446996), (94, 223498), (188, 111749), (517, 40636), (1034, 20318), (2068, 10159)]