18990032

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{19457}}^1$

素因数の和:19526

約数の個数: 20

約数和(自身を含む): 37398276

約数和(自身を除く): 18408244

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 19457, 38914, 77828, 155656, 311312, 1186877, 2373754, 4747508, 9495016, 18990032]

約数ペア:

[(1, 18990032), (2, 9495016), (4, 4747508), (8, 2373754), (16, 1186877), (61, 311312), (122, 155656), (244, 77828), (488, 38914), (976, 19457)]