20164892

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:770

約数の個数: 36

約数和(自身を含む): 39481848

約数和(自身を除く): 19316956

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 671, 683, 1342, 1366, 2684, 2732, 7381, 7513, 14762, 15026, 29524, 30052, 41663, 82643, 83326, 165286, 166652, 330572, 458293, 916586, 1833172, 5041223, 10082446, 20164892]

約数ペア:

[(1, 20164892), (2, 10082446), (4, 5041223), (11, 1833172), (22, 916586), (44, 458293), (61, 330572), (121, 166652), (122, 165286), (242, 83326), (244, 82643), (484, 41663), (671, 30052), (683, 29524), (1342, 15026), (1366, 14762), (2684, 7513), (2732, 7381)]