18722572

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{383}}^1$

素因数の和:510

約数の個数: 36

約数和(自身を含む): 36465408

約数和(自身を除く): 17742836

約数列:

[1, 2, 4, 11, 22, 44, 101, 121, 202, 242, 383, 404, 484, 766, 1111, 1532, 2222, 4213, 4444, 8426, 12221, 16852, 24442, 38683, 46343, 48884, 77366, 92686, 154732, 185372, 425513, 851026, 1702052, 4680643, 9361286, 18722572]

約数ペア:

[(1, 18722572), (2, 9361286), (4, 4680643), (11, 1702052), (22, 851026), (44, 425513), (101, 185372), (121, 154732), (202, 92686), (242, 77366), (383, 48884), (404, 46343), (484, 38683), (766, 24442), (1111, 16852), (1532, 12221), (2222, 8426), (4213, 4444)]