21075142

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{397}}^1$

素因数の和:556

約数の個数: 32

約数和(自身を含む): 36679680

約数和(自身を除く): 15604538

約数列:

[1, 2, 11, 19, 22, 38, 127, 209, 254, 397, 418, 794, 1397, 2413, 2794, 4367, 4826, 7543, 8734, 15086, 26543, 50419, 53086, 82973, 100838, 165946, 554609, 957961, 1109218, 1915922, 10537571, 21075142]

約数ペア:

[(1, 21075142), (2, 10537571), (11, 1915922), (19, 1109218), (22, 957961), (38, 554609), (127, 165946), (209, 100838), (254, 82973), (397, 53086), (418, 50419), (794, 26543), (1397, 15086), (2413, 8734), (2794, 7543), (4367, 4826)]