21073118

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^2$

素因数の和:161

約数の個数: 36

約数和(自身を含む): 36554784

約数和(自身を除く): 15481666

約数列:

[1, 2, 11, 22, 31, 53, 62, 106, 121, 242, 341, 583, 682, 1166, 1643, 2809, 3286, 3751, 5618, 6413, 7502, 12826, 18073, 30899, 36146, 61798, 87079, 174158, 198803, 339889, 397606, 679778, 957869, 1915738, 10536559, 21073118]

約数ペア:

[(1, 21073118), (2, 10536559), (11, 1915738), (22, 957869), (31, 679778), (53, 397606), (62, 339889), (106, 198803), (121, 174158), (242, 87079), (341, 61798), (583, 36146), (682, 30899), (1166, 18073), (1643, 12826), (2809, 7502), (3286, 6413), (3751, 5618)]