19657990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1033}}^1$

素因数の和:1224

約数の個数: 32

約数和(自身を含む): 38861856

約数和(自身を除く): 19203866

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 173, 346, 865, 1033, 1730, 1903, 2066, 3806, 5165, 9515, 10330, 11363, 19030, 22726, 56815, 113630, 178709, 357418, 893545, 1787090, 1965799, 3931598, 9828995, 19657990]

約数ペア:

[(1, 19657990), (2, 9828995), (5, 3931598), (10, 1965799), (11, 1787090), (22, 893545), (55, 357418), (110, 178709), (173, 113630), (346, 56815), (865, 22726), (1033, 19030), (1730, 11363), (1903, 10330), (2066, 9515), (3806, 5165)]