20405967

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{12907}}^1$

素因数の和:12958

約数の個数: 16

約数和(自身を含む): 29740032

約数和(自身を除く): 9334065

約数列:

[1, 3, 17, 31, 51, 93, 527, 1581, 12907, 38721, 219419, 400117, 658257, 1200351, 6801989, 20405967]

約数ペア:

[(1, 20405967), (3, 6801989), (17, 1200351), (31, 658257), (51, 400117), (93, 219419), (527, 38721), (1581, 12907)]