19720954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{739}}^1\times {\mathrm{1213}}^1$

素因数の和:1965

約数の個数: 16

約数和(自身を含む): 32340960

約数和(自身を除く): 12620006

約数列:

[1, 2, 11, 22, 739, 1213, 1478, 2426, 8129, 13343, 16258, 26686, 896407, 1792814, 9860477, 19720954]

約数ペア:

[(1, 19720954), (2, 9860477), (11, 1792814), (22, 896407), (739, 26686), (1213, 16258), (1478, 13343), (2426, 8129)]