19820227

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{401}}^1$

素因数の和:738

約数の個数: 16

約数和(自身を含む): 23772672

約数和(自身を除く): 3952445

約数列:

[1, 7, 23, 161, 307, 401, 2149, 2807, 7061, 9223, 49427, 64561, 123107, 861749, 2831461, 19820227]

約数ペア:

[(1, 19820227), (7, 2831461), (23, 861749), (161, 123107), (307, 64561), (401, 49427), (2149, 9223), (2807, 7061)]