21009584

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{3119}}^1$

素因数の和:3548

約数の個数: 20

約数和(自身を含む): 40815840

約数和(自身を除く): 19806256

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 3119, 3368, 6238, 6736, 12476, 24952, 49904, 1313099, 2626198, 5252396, 10504792, 21009584]

約数ペア:

[(1, 21009584), (2, 10504792), (4, 5252396), (8, 2626198), (16, 1313099), (421, 49904), (842, 24952), (1684, 12476), (3119, 6736), (3368, 6238)]