21717878

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17047}}^1$

素因数の和:17076

約数の個数: 24

約数和(自身を含む): 40812912

約数和(自身を除く): 19095034

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 637, 1274, 17047, 34094, 119329, 221611, 238658, 443222, 835303, 1551277, 1670606, 3102554, 10858939, 21717878]

約数ペア:

[(1, 21717878), (2, 10858939), (7, 3102554), (13, 1670606), (14, 1551277), (26, 835303), (49, 443222), (91, 238658), (98, 221611), (182, 119329), (637, 34094), (1274, 17047)]