1221740639

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{29201}}^1$

素因数の和:29390

約数の個数: 16

約数和(自身を含む): 1439074560

約数和(自身を除く): 217333921

約数列:

[1, 7, 43, 139, 301, 973, 5977, 29201, 41839, 204407, 1255643, 4058939, 8789501, 28412573, 174534377, 1221740639]

約数ペア:

[(1, 1221740639), (7, 174534377), (43, 28412573), (139, 8789501), (301, 4058939), (973, 1255643), (5977, 204407), (29201, 41839)]