209127945

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{9839}}^1$

素因数の和:9969

約数の個数: 32

約数和(自身を含む): 363686400

約数和(自身を除く): 154558455

約数列:

[1, 3, 5, 13, 15, 39, 65, 109, 195, 327, 545, 1417, 1635, 4251, 7085, 9839, 21255, 29517, 49195, 127907, 147585, 383721, 639535, 1072451, 1918605, 3217353, 5362255, 13941863, 16086765, 41825589, 69709315, 209127945]

約数ペア:

[(1, 209127945), (3, 69709315), (5, 41825589), (13, 16086765), (15, 13941863), (39, 5362255), (65, 3217353), (109, 1918605), (195, 1072451), (327, 639535), (545, 383721), (1417, 147585), (1635, 127907), (4251, 49195), (7085, 29517), (9839, 21255)]