21782530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28289}}^1$

素因数の和:28314

約数の個数: 32

約数和(自身を含む): 48885120

約数和(自身を除く): 27102590

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28289, 56578, 141445, 198023, 282890, 311179, 396046, 622358, 990115, 1555895, 1980230, 2178253, 3111790, 4356506, 10891265, 21782530]

約数ペア:

[(1, 21782530), (2, 10891265), (5, 4356506), (7, 3111790), (10, 2178253), (11, 1980230), (14, 1555895), (22, 990115), (35, 622358), (55, 396046), (70, 311179), (77, 282890), (110, 198023), (154, 141445), (385, 56578), (770, 28289)]