31572879

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 47249664

約数和(自身を除く): 15676785

約数列:

[1, 3, 13, 39, 43, 67, 129, 201, 281, 559, 843, 871, 1677, 2613, 2881, 3653, 8643, 10959, 12083, 18827, 36249, 37453, 56481, 112359, 157079, 244751, 471237, 734253, 809561, 2428683, 10524293, 31572879]

約数ペア:

[(1, 31572879), (3, 10524293), (13, 2428683), (39, 809561), (43, 734253), (67, 471237), (129, 244751), (201, 157079), (281, 112359), (559, 56481), (843, 37453), (871, 36249), (1677, 18827), (2613, 12083), (2881, 10959), (3653, 8643)]