18382804

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1999}}^1$

素因数の和:2044

約数の個数: 36

約数和(自身を含む): 37240000

約数和(自身を除く): 18857196

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 1999, 2299, 3998, 4598, 7996, 9196, 21989, 37981, 43978, 75962, 87956, 151924, 241879, 417791, 483758, 835582, 967516, 1671164, 4595701, 9191402, 18382804]

約数ペア:

[(1, 18382804), (2, 9191402), (4, 4595701), (11, 1671164), (19, 967516), (22, 835582), (38, 483758), (44, 417791), (76, 241879), (121, 151924), (209, 87956), (242, 75962), (418, 43978), (484, 37981), (836, 21989), (1999, 9196), (2299, 7996), (3998, 4598)]