20490954

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{4253}}^1$

素因数の和:4342

約数の個数: 32

約数和(自身を含む): 45330624

約数和(自身を除く): 24839670

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 73, 146, 219, 438, 803, 1606, 2409, 4253, 4818, 8506, 12759, 25518, 46783, 93566, 140349, 280698, 310469, 620938, 931407, 1862814, 3415159, 6830318, 10245477, 20490954]

約数ペア:

[(1, 20490954), (2, 10245477), (3, 6830318), (6, 3415159), (11, 1862814), (22, 931407), (33, 620938), (66, 310469), (73, 280698), (146, 140349), (219, 93566), (438, 46783), (803, 25518), (1606, 12759), (2409, 8506), (4253, 4818)]