19801383

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{17791}}^1$

素因数の和:17854

約数の個数: 16

約数和(自身を含む): 30744576

約数和(自身を除く): 10943193

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 17791, 53373, 124537, 373611, 942923, 2828769, 6600461, 19801383]

約数ペア:

[(1, 19801383), (3, 6600461), (7, 2828769), (21, 942923), (53, 373611), (159, 124537), (371, 53373), (1113, 17791)]