21085204

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1129}}^1$

素因数の和:1192

約数の個数: 48

約数和(自身を含む): 45561600

約数和(自身を除く): 24476396

約数列:

[1, 2, 4, 7, 14, 23, 28, 29, 46, 58, 92, 116, 161, 203, 322, 406, 644, 667, 812, 1129, 1334, 2258, 2668, 4516, 4669, 7903, 9338, 15806, 18676, 25967, 31612, 32741, 51934, 65482, 103868, 130964, 181769, 229187, 363538, 458374, 727076, 753043, 916748, 1506086, 3012172, 5271301, 10542602, 21085204]

約数ペア:

[(1, 21085204), (2, 10542602), (4, 5271301), (7, 3012172), (14, 1506086), (23, 916748), (28, 753043), (29, 727076), (46, 458374), (58, 363538), (92, 229187), (116, 181769), (161, 130964), (203, 103868), (322, 65482), (406, 51934), (644, 32741), (667, 31612), (812, 25967), (1129, 18676), (1334, 15806), (2258, 9338), (2668, 7903), (4516, 4669)]