1278889479

素因数分解:

$3^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{20693}}^1$

素因数の和:20821

約数の個数: 40

約数和(自身を含む): 2203497120

約数和(自身を除く): 924607641

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 109, 189, 327, 567, 763, 981, 2289, 2943, 6867, 8829, 20601, 20693, 61803, 62079, 144851, 186237, 434553, 558711, 1303659, 1676133, 2255537, 3910977, 6766611, 11732931, 15788759, 20299833, 47366277, 60899499, 142098831, 182698497, 426296493, 1278889479]

約数ペア:

[(1, 1278889479), (3, 426296493), (7, 182698497), (9, 142098831), (21, 60899499), (27, 47366277), (63, 20299833), (81, 15788759), (109, 11732931), (189, 6766611), (327, 3910977), (567, 2255537), (763, 1676133), (981, 1303659), (2289, 558711), (2943, 434553), (6867, 186237), (8829, 144851), (20601, 62079), (20693, 61803)]