81643878

素因数分解:

$2^1\times 3^2\times {\mathrm{1609}}^1\times {\mathrm{2819}}^1$

素因数の和:4436

約数の個数: 24

約数和(自身を含む): 177067800

約数和(自身を除く): 95423922

約数列:

[1, 2, 3, 6, 9, 18, 1609, 2819, 3218, 4827, 5638, 8457, 9654, 14481, 16914, 25371, 28962, 50742, 4535771, 9071542, 13607313, 27214626, 40821939, 81643878]

約数ペア:

[(1, 81643878), (2, 40821939), (3, 27214626), (6, 13607313), (9, 9071542), (18, 4535771), (1609, 50742), (2819, 28962), (3218, 25371), (4827, 16914), (5638, 14481), (8457, 9654)]