19517072

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{19997}}^1$

素因数の和:20066

約数の個数: 20

約数和(自身を含む): 38436156

約数和(自身を除く): 18919084

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 19997, 39994, 79988, 159976, 319952, 1219817, 2439634, 4879268, 9758536, 19517072]

約数ペア:

[(1, 19517072), (2, 9758536), (4, 4879268), (8, 2439634), (16, 1219817), (61, 319952), (122, 159976), (244, 79988), (488, 39994), (976, 19997)]