20153478177

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1062779}}^1$

素因数の和:1062842

約数の個数: 36

約数和(自身を含む): 34650879120

約数和(自身を除く): 14497400943

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 387, 441, 903, 2107, 2709, 6321, 18963, 1062779, 3188337, 7439453, 9565011, 22318359, 45699497, 52076171, 66955077, 137098491, 156228513, 319896479, 411295473, 468685539, 959689437, 2239275353, 2879068311, 6717826059, 20153478177]

約数ペア:

[(1, 20153478177), (3, 6717826059), (7, 2879068311), (9, 2239275353), (21, 959689437), (43, 468685539), (49, 411295473), (63, 319896479), (129, 156228513), (147, 137098491), (301, 66955077), (387, 52076171), (441, 45699497), (903, 22318359), (2107, 9565011), (2709, 7439453), (6321, 3188337), (18963, 1062779)]