21981032

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{38699}}^1$

素因数の和:38776

約数の個数: 16

約数和(自身を含む): 41796000

約数和(自身を除く): 19814968

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 38699, 77398, 154796, 309592, 2747629, 5495258, 10990516, 21981032]

約数ペア:

[(1, 21981032), (2, 10990516), (4, 5495258), (8, 2747629), (71, 309592), (142, 154796), (284, 77398), (568, 38699)]