21197552

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42737}}^1$

素因数の和:42776

約数の個数: 20

約数和(自身を含む): 42396096

約数和(自身を除く): 21198544

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42737, 85474, 170948, 341896, 683792, 1324847, 2649694, 5299388, 10598776, 21197552]

約数ペア:

[(1, 21197552), (2, 10598776), (4, 5299388), (8, 2649694), (16, 1324847), (31, 683792), (62, 341896), (124, 170948), (248, 85474), (496, 42737)]