21179270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43223}}^1$

素因数の和:43244

約数の個数: 24

約数和(自身を含む): 44347824

約数和(自身を除く): 23168554

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43223, 86446, 216115, 302561, 432230, 605122, 1512805, 2117927, 3025610, 4235854, 10589635, 21179270]

約数ペア:

[(1, 21179270), (2, 10589635), (5, 4235854), (7, 3025610), (10, 2117927), (14, 1512805), (35, 605122), (49, 432230), (70, 302561), (98, 216115), (245, 86446), (490, 43223)]