20763729

素因数分解:

$3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1801}}^1$

素因数の和:1878

約数の個数: 32

約数和(自身を含む): 35751680

約数和(自身を除く): 14987951

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 183, 189, 427, 549, 1281, 1647, 1801, 3843, 5403, 11529, 12607, 16209, 37821, 48627, 109861, 113463, 329583, 340389, 769027, 988749, 2307081, 2966247, 6921243, 20763729]

約数ペア:

[(1, 20763729), (3, 6921243), (7, 2966247), (9, 2307081), (21, 988749), (27, 769027), (61, 340389), (63, 329583), (183, 113463), (189, 109861), (427, 48627), (549, 37821), (1281, 16209), (1647, 12607), (1801, 11529), (3843, 5403)]