21919273

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:476

約数の個数: 16

約数和(自身を含む): 24241680

約数和(自身を除く): 2322407

約数列:

[1, 17, 29, 173, 257, 493, 2941, 4369, 5017, 7453, 44461, 85289, 126701, 755837, 1289369, 21919273]

約数ペア:

[(1, 21919273), (17, 1289369), (29, 755837), (173, 126701), (257, 85289), (493, 44461), (2941, 7453), (4369, 5017)]