19500904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{643}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 19448216

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 223, 446, 643, 892, 1286, 1784, 2572, 3791, 5144, 7582, 10931, 15164, 21862, 30328, 43724, 87448, 143389, 286778, 573556, 1147112, 2437613, 4875226, 9750452, 19500904]

約数ペア:

[(1, 19500904), (2, 9750452), (4, 4875226), (8, 2437613), (17, 1147112), (34, 573556), (68, 286778), (136, 143389), (223, 87448), (446, 43724), (643, 30328), (892, 21862), (1286, 15164), (1784, 10931), (2572, 7582), (3791, 5144)]