21124447

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 23104000

約数和(自身を除く): 1979553

約数列:

[1, 19, 37, 151, 199, 703, 2869, 3781, 5587, 7363, 30049, 106153, 139897, 570931, 1111813, 21124447]

約数ペア:

[(1, 21124447), (19, 1111813), (37, 570931), (151, 139897), (199, 106153), (703, 30049), (2869, 7363), (3781, 5587)]