21009276

素因数分解:

$2^2\times 3^2\times {\mathrm{223}}^1\times {\mathrm{2617}}^1$

素因数の和:2850

約数の個数: 36

約数和(自身を含む): 53365312

約数和(自身を除く): 32356036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 223, 446, 669, 892, 1338, 2007, 2617, 2676, 4014, 5234, 7851, 8028, 10468, 15702, 23553, 31404, 47106, 94212, 583591, 1167182, 1750773, 2334364, 3501546, 5252319, 7003092, 10504638, 21009276]

約数ペア:

[(1, 21009276), (2, 10504638), (3, 7003092), (4, 5252319), (6, 3501546), (9, 2334364), (12, 1750773), (18, 1167182), (36, 583591), (223, 94212), (446, 47106), (669, 31404), (892, 23553), (1338, 15702), (2007, 10468), (2617, 8028), (2676, 7851), (4014, 5234)]