21684244

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6959}}^1$

素因数の和:7023

約数の個数: 24

約数和(自身を含む): 40924800

約数和(自身を除く): 19240556

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6959, 13918, 27836, 132221, 264442, 285319, 528884, 570638, 1141276, 5421061, 10842122, 21684244]

約数ペア:

[(1, 21684244), (2, 10842122), (4, 5421061), (19, 1141276), (38, 570638), (41, 528884), (76, 285319), (82, 264442), (164, 132221), (779, 27836), (1558, 13918), (3116, 6959)]