217291333

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{523}}^1$

素因数の和:737

約数の個数: 24

約数和(自身を含む): 259254240

約数和(自身を除く): 41962907

約数列:

[1, 7, 49, 61, 139, 427, 523, 973, 2989, 3661, 6811, 8479, 25627, 31903, 59353, 72697, 223321, 415471, 508879, 1563247, 3562153, 4434517, 31041619, 217291333]

約数ペア:

[(1, 217291333), (7, 31041619), (49, 4434517), (61, 3562153), (139, 1563247), (427, 508879), (523, 415471), (973, 223321), (2989, 72697), (3661, 59353), (6811, 31903), (8479, 25627)]