21291774

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72421}}^1$

素因数の和:72440

約数の個数: 24

約数和(自身を含む): 49536648

約数和(自身を除く): 28244874

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72421, 144842, 217263, 434526, 506947, 1013894, 1520841, 3041682, 3548629, 7097258, 10645887, 21291774]

約数ペア:

[(1, 21291774), (2, 10645887), (3, 7097258), (6, 3548629), (7, 3041682), (14, 1520841), (21, 1013894), (42, 506947), (49, 434526), (98, 217263), (147, 144842), (294, 72421)]