20797736

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{317}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 40068000

約数和(自身を除く): 19270264

約数列:

[1, 2, 4, 8, 59, 118, 139, 236, 278, 317, 472, 556, 634, 1112, 1268, 2536, 8201, 16402, 18703, 32804, 37406, 44063, 65608, 74812, 88126, 149624, 176252, 352504, 2599717, 5199434, 10398868, 20797736]

約数ペア:

[(1, 20797736), (2, 10398868), (4, 5199434), (8, 2599717), (59, 352504), (118, 176252), (139, 149624), (236, 88126), (278, 74812), (317, 65608), (472, 44063), (556, 37406), (634, 32804), (1112, 18703), (1268, 16402), (2536, 8201)]