21099068

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{509}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 38013360

約数和(自身を除く): 16914292

約数列:

[1, 2, 4, 43, 86, 172, 241, 482, 509, 964, 1018, 2036, 10363, 20726, 21887, 41452, 43774, 87548, 122669, 245338, 490676, 5274767, 10549534, 21099068]

約数ペア:

[(1, 21099068), (2, 10549534), (4, 5274767), (43, 490676), (86, 245338), (172, 122669), (241, 87548), (482, 43774), (509, 41452), (964, 21887), (1018, 20726), (2036, 10363)]