21288722

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2207}}^1$

素因数の和:2282

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 18773230

約数列:

[1, 2, 7, 13, 14, 26, 53, 91, 106, 182, 371, 689, 742, 1378, 2207, 4414, 4823, 9646, 15449, 28691, 30898, 57382, 116971, 200837, 233942, 401674, 818797, 1520623, 1637594, 3041246, 10644361, 21288722]

約数ペア:

[(1, 21288722), (2, 10644361), (7, 3041246), (13, 1637594), (14, 1520623), (26, 818797), (53, 401674), (91, 233942), (106, 200837), (182, 116971), (371, 57382), (689, 30898), (742, 28691), (1378, 15449), (2207, 9646), (4414, 4823)]