21771724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5897}}^1$

素因数の和:5985

約数の個数: 24

約数和(自身を含む): 41616288

約数和(自身を除く): 19844564

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5897, 11794, 23588, 76661, 153322, 306644, 418687, 837374, 1674748, 5442931, 10885862, 21771724]

約数ペア:

[(1, 21771724), (2, 10885862), (4, 5442931), (13, 1674748), (26, 837374), (52, 418687), (71, 306644), (142, 153322), (284, 76661), (923, 23588), (1846, 11794), (3692, 5897)]