21158494

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{5021}}^1$

素因数の和:5080

約数の個数: 24

約数和(自身を含む): 37785528

約数和(自身を除く): 16627034

約数列:

[1, 2, 7, 14, 43, 49, 86, 98, 301, 602, 2107, 4214, 5021, 10042, 35147, 70294, 215903, 246029, 431806, 492058, 1511321, 3022642, 10579247, 21158494]

約数ペア:

[(1, 21158494), (2, 10579247), (7, 3022642), (14, 1511321), (43, 492058), (49, 431806), (86, 246029), (98, 215903), (301, 70294), (602, 35147), (2107, 10042), (4214, 5021)]