213881885

素因数分解:

$5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{38923}}^1$

素因数の和:39092

約数の個数: 16

約数和(自身を含む): 295199616

約数和(自身を除く): 81317731

約数列:

[1, 5, 7, 35, 157, 785, 1099, 5495, 38923, 194615, 272461, 1362305, 6110911, 30554555, 42776377, 213881885]

約数ペア:

[(1, 213881885), (5, 42776377), (7, 30554555), (35, 6110911), (157, 1362305), (785, 272461), (1099, 194615), (5495, 38923)]