21817874

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 14760430

約数列:

[1, 2, 13, 26, 53, 71, 106, 142, 223, 446, 689, 923, 1378, 1846, 2899, 3763, 5798, 7526, 11819, 15833, 23638, 31666, 48919, 97838, 153647, 205829, 307294, 411658, 839149, 1678298, 10908937, 21817874]

約数ペア:

[(1, 21817874), (2, 10908937), (13, 1678298), (26, 839149), (53, 411658), (71, 307294), (106, 205829), (142, 153647), (223, 97838), (446, 48919), (689, 31666), (923, 23638), (1378, 15833), (1846, 11819), (2899, 7526), (3763, 5798)]