20786556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1889}}^1$

素因数の和:2034

約数の個数: 48

約数和(自身を含む): 55883520

約数和(自身を除く): 35096964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 131, 262, 393, 524, 786, 917, 1572, 1834, 1889, 2751, 3668, 3778, 5502, 5667, 7556, 11004, 11334, 13223, 22668, 26446, 39669, 52892, 79338, 158676, 247459, 494918, 742377, 989836, 1484754, 1732213, 2969508, 3464426, 5196639, 6928852, 10393278, 20786556]

約数ペア:

[(1, 20786556), (2, 10393278), (3, 6928852), (4, 5196639), (6, 3464426), (7, 2969508), (12, 1732213), (14, 1484754), (21, 989836), (28, 742377), (42, 494918), (84, 247459), (131, 158676), (262, 79338), (393, 52892), (524, 39669), (786, 26446), (917, 22668), (1572, 13223), (1834, 11334), (1889, 11004), (2751, 7556), (3668, 5667), (3778, 5502)]