21118192

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42577}}^1$

素因数の和:42616

約数の個数: 20

約数和(自身を含む): 42237376

約数和(自身を除く): 21119184

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42577, 85154, 170308, 340616, 681232, 1319887, 2639774, 5279548, 10559096, 21118192]

約数ペア:

[(1, 21118192), (2, 10559096), (4, 5279548), (8, 2639774), (16, 1319887), (31, 681232), (62, 340616), (124, 170308), (248, 85154), (496, 42577)]