21043605

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1433}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 37169280

約数和(自身を除く): 16125675

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1335, 1433, 2937, 4299, 4895, 7165, 14685, 15763, 21495, 47289, 78815, 127537, 236445, 382611, 637685, 1402907, 1913055, 4208721, 7014535, 21043605]

約数ペア:

[(1, 21043605), (3, 7014535), (5, 4208721), (11, 1913055), (15, 1402907), (33, 637685), (55, 382611), (89, 236445), (165, 127537), (267, 78815), (445, 47289), (979, 21495), (1335, 15763), (1433, 14685), (2937, 7165), (4299, 4895)]