19708845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1907}}^1$

素因数の和:1981

約数の個数: 32

約数和(自身を含む): 34618752

約数和(自身を除く): 14909907

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 689, 795, 1907, 2067, 3445, 5721, 9535, 10335, 24791, 28605, 74373, 101071, 123955, 303213, 371865, 505355, 1313923, 1516065, 3941769, 6569615, 19708845]

約数ペア:

[(1, 19708845), (3, 6569615), (5, 3941769), (13, 1516065), (15, 1313923), (39, 505355), (53, 371865), (65, 303213), (159, 123955), (195, 101071), (265, 74373), (689, 28605), (795, 24791), (1907, 10335), (2067, 9535), (3445, 5721)]