21188752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101869}}^1$

素因数の和:101890

約数の個数: 20

約数和(自身を含む): 44211580

約数和(自身を除く): 23022828

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101869, 203738, 407476, 814952, 1324297, 1629904, 2648594, 5297188, 10594376, 21188752]

約数ペア:

[(1, 21188752), (2, 10594376), (4, 5297188), (8, 2648594), (13, 1629904), (16, 1324297), (26, 814952), (52, 407476), (104, 203738), (208, 101869)]