21965966

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43411}}^1$

素因数の和:43447

約数の個数: 16

約数和(自身を含む): 37507968

約数和(自身を除く): 15542002

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 43411, 86822, 477521, 955042, 998453, 1996906, 10982983, 21965966]

約数ペア:

[(1, 21965966), (2, 10982983), (11, 1996906), (22, 998453), (23, 955042), (46, 477521), (253, 86822), (506, 43411)]