1212778886

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{25439}}^1$

素因数の和:25660

約数の個数: 24

約数和(自身を含む): 2009810880

約数和(自身を除く): 797031994

約数列:

[1, 2, 11, 22, 121, 197, 242, 394, 2167, 4334, 23837, 25439, 47674, 50878, 279829, 559658, 3078119, 5011483, 6156238, 10022966, 55126313, 110252626, 606389443, 1212778886]

約数ペア:

[(1, 1212778886), (2, 606389443), (11, 110252626), (22, 55126313), (121, 10022966), (197, 6156238), (242, 5011483), (394, 3078119), (2167, 559658), (4334, 279829), (23837, 50878), (25439, 47674)]