21000751959

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12007291}}^1$

素因数の和:12007358

約数の個数: 16

約数和(自身を含む): 31122900864

約数和(自身を除く): 10122148905

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 12007291, 36021873, 132080201, 396240603, 636386423, 1909159269, 7000250653, 21000751959]

約数ペア:

[(1, 21000751959), (3, 7000250653), (11, 1909159269), (33, 636386423), (53, 396240603), (159, 132080201), (583, 36021873), (1749, 12007291)]