81789687

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41879}}^1$

素因数の和:41923

約数の個数: 24

約数和(自身を含む): 139376640

約数和(自身を除く): 57586953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 41879, 125637, 293153, 376911, 879459, 1298249, 2638377, 3894747, 9087743, 11684241, 27263229, 81789687]

約数ペア:

[(1, 81789687), (3, 27263229), (7, 11684241), (9, 9087743), (21, 3894747), (31, 2638377), (63, 1298249), (93, 879459), (217, 376911), (279, 293153), (651, 125637), (1953, 41879)]