21240010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{547}}^1$

素因数の和:918

約数の個数: 32

約数和(自身を含む): 41902272

約数和(自身を除く): 20662262

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 353, 547, 706, 1094, 1765, 2735, 3530, 3883, 5470, 6017, 7766, 12034, 19415, 30085, 38830, 60170, 193091, 386182, 965455, 1930910, 2124001, 4248002, 10620005, 21240010]

約数ペア:

[(1, 21240010), (2, 10620005), (5, 4248002), (10, 2124001), (11, 1930910), (22, 965455), (55, 386182), (110, 193091), (353, 60170), (547, 38830), (706, 30085), (1094, 19415), (1765, 12034), (2735, 7766), (3530, 6017), (3883, 5470)]