21989584

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{6163}}^1$

素因数の和:6394

約数の個数: 20

約数和(自身を含む): 42802816

約数和(自身を除く): 20813232

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 6163, 12326, 24652, 49304, 98608, 1374349, 2748698, 5497396, 10994792, 21989584]

約数ペア:

[(1, 21989584), (2, 10994792), (4, 5497396), (8, 2748698), (16, 1374349), (223, 98608), (446, 49304), (892, 24652), (1784, 12326), (3568, 6163)]