19876983

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1607}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 32931840

約数和(自身を除く): 13054857

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 133, 217, 399, 589, 651, 1607, 1767, 4123, 4821, 11249, 12369, 30533, 33747, 49817, 91599, 149451, 213731, 348719, 641193, 946523, 1046157, 2839569, 6625661, 19876983]

約数ペア:

[(1, 19876983), (3, 6625661), (7, 2839569), (19, 1046157), (21, 946523), (31, 641193), (57, 348719), (93, 213731), (133, 149451), (217, 91599), (399, 49817), (589, 33747), (651, 30533), (1607, 12369), (1767, 11249), (4123, 4821)]