21393654

素因数分解:

$2^1\times 3^1\times {\mathrm{281}}^1\times {\mathrm{12689}}^1$

素因数の和:12975

約数の個数: 16

約数和(自身を含む): 42942960

約数和(自身を除く): 21549306

約数列:

[1, 2, 3, 6, 281, 562, 843, 1686, 12689, 25378, 38067, 76134, 3565609, 7131218, 10696827, 21393654]

約数ペア:

[(1, 21393654), (2, 10696827), (3, 7131218), (6, 3565609), (281, 76134), (562, 38067), (843, 25378), (1686, 12689)]