21969915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2833}}^1$

素因数の和:2899

約数の個数: 32

約数和(自身を含む): 39177216

約数和(自身を除く): 17207301

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 141, 165, 235, 517, 705, 1551, 2585, 2833, 7755, 8499, 14165, 31163, 42495, 93489, 133151, 155815, 399453, 467445, 665755, 1464661, 1997265, 4393983, 7323305, 21969915]

約数ペア:

[(1, 21969915), (3, 7323305), (5, 4393983), (11, 1997265), (15, 1464661), (33, 665755), (47, 467445), (55, 399453), (141, 155815), (165, 133151), (235, 93489), (517, 42495), (705, 31163), (1551, 14165), (2585, 8499), (2833, 7755)]