21491916

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{41651}}^1$

素因数の和:41701

約数の個数: 24

約数和(自身を含む): 51315264

約数和(自身を除く): 29823348

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 41651, 83302, 124953, 166604, 249906, 499812, 1790993, 3581986, 5372979, 7163972, 10745958, 21491916]

約数ペア:

[(1, 21491916), (2, 10745958), (3, 7163972), (4, 5372979), (6, 3581986), (12, 1790993), (43, 499812), (86, 249906), (129, 166604), (172, 124953), (258, 83302), (516, 41651)]