31397331

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 49144320

約数和(自身を除く): 17746989

約数列:

[1, 3, 7, 21, 89, 107, 157, 267, 321, 471, 623, 749, 1099, 1869, 2247, 3297, 9523, 13973, 16799, 28569, 41919, 50397, 66661, 97811, 117593, 199983, 293433, 352779, 1495111, 4485333, 10465777, 31397331]

約数ペア:

[(1, 31397331), (3, 10465777), (7, 4485333), (21, 1495111), (89, 352779), (107, 293433), (157, 199983), (267, 117593), (321, 97811), (471, 66661), (623, 50397), (749, 41919), (1099, 28569), (1869, 16799), (2247, 13973), (3297, 9523)]