18214521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{523}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 28170240

約数和(自身を除く): 9955719

約数列:

[1, 3, 13, 19, 39, 47, 57, 141, 247, 523, 611, 741, 893, 1569, 1833, 2679, 6799, 9937, 11609, 20397, 24581, 29811, 34827, 73743, 129181, 319553, 387543, 467039, 958659, 1401117, 6071507, 18214521]

約数ペア:

[(1, 18214521), (3, 6071507), (13, 1401117), (19, 958659), (39, 467039), (47, 387543), (57, 319553), (141, 129181), (247, 73743), (523, 34827), (611, 29811), (741, 24581), (893, 20397), (1569, 11609), (1833, 9937), (2679, 6799)]