21000503461

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{974999}}^1$

素因数の和:975204

約数の個数: 16

約数和(自身を含む): 25552800000

約数和(自身を除く): 4552296539

約数列:

[1, 7, 17, 119, 181, 1267, 3077, 21539, 974999, 6824993, 16574983, 116024881, 176474819, 1235323733, 3000071923, 21000503461]

約数ペア:

[(1, 21000503461), (7, 3000071923), (17, 1235323733), (119, 176474819), (181, 116024881), (1267, 16574983), (3077, 6824993), (21539, 974999)]