21099778

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:898

約数の個数: 32

約数和(自身を含む): 37997568

約数和(自身を除く): 16897790

約数列:

[1, 2, 7, 14, 31, 61, 62, 122, 217, 427, 434, 797, 854, 1594, 1891, 3782, 5579, 11158, 13237, 24707, 26474, 48617, 49414, 97234, 172949, 340319, 345898, 680638, 1507127, 3014254, 10549889, 21099778]

約数ペア:

[(1, 21099778), (2, 10549889), (7, 3014254), (14, 1507127), (31, 680638), (61, 345898), (62, 340319), (122, 172949), (217, 97234), (427, 49414), (434, 48617), (797, 26474), (854, 24707), (1594, 13237), (1891, 11158), (3782, 5579)]