19910462

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1619}}^1$

素因数の和:1688

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 16014658

約数列:

[1, 2, 11, 13, 22, 26, 43, 86, 143, 286, 473, 559, 946, 1118, 1619, 3238, 6149, 12298, 17809, 21047, 35618, 42094, 69617, 139234, 231517, 463034, 765787, 905021, 1531574, 1810042, 9955231, 19910462]

約数ペア:

[(1, 19910462), (2, 9955231), (11, 1810042), (13, 1531574), (22, 905021), (26, 765787), (43, 463034), (86, 231517), (143, 139234), (286, 69617), (473, 42094), (559, 35618), (946, 21047), (1118, 17809), (1619, 12298), (3238, 6149)]