21365367

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 32102400

約数和(自身を除く): 10737033

約数列:

[1, 3, 19, 23, 43, 57, 69, 129, 379, 437, 817, 989, 1137, 1311, 2451, 2967, 7201, 8717, 16297, 18791, 21603, 26151, 48891, 56373, 165623, 309643, 374831, 496869, 928929, 1124493, 7121789, 21365367]

約数ペア:

[(1, 21365367), (3, 7121789), (19, 1124493), (23, 928929), (43, 496869), (57, 374831), (69, 309643), (129, 165623), (379, 56373), (437, 48891), (817, 26151), (989, 21603), (1137, 18791), (1311, 16297), (2451, 8717), (2967, 7201)]