20665659

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{541}}^1$

素因数の和:675

約数の個数: 32

約数和(自身を含む): 33716736

約数和(自身を除く): 13051077

約数列:

[1, 3, 7, 17, 21, 51, 107, 119, 321, 357, 541, 749, 1623, 1819, 2247, 3787, 5457, 9197, 11361, 12733, 27591, 38199, 57887, 64379, 173661, 193137, 405209, 984079, 1215627, 2952237, 6888553, 20665659]

約数ペア:

[(1, 20665659), (3, 6888553), (7, 2952237), (17, 1215627), (21, 984079), (51, 405209), (107, 193137), (119, 173661), (321, 64379), (357, 57887), (541, 38199), (749, 27591), (1623, 12733), (1819, 11361), (2247, 9197), (3787, 5457)]