20716047

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{373}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 35814240

約数和(自身を除く): 15098193

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 99, 121, 153, 187, 297, 363, 373, 459, 561, 1089, 1119, 1683, 2057, 3267, 3357, 4103, 5049, 6171, 6341, 10071, 12309, 18513, 19023, 36927, 45133, 55539, 57069, 69751, 110781, 135399, 171207, 209253, 406197, 627759, 767261, 1218591, 1883277, 2301783, 6905349, 20716047]

約数ペア:

[(1, 20716047), (3, 6905349), (9, 2301783), (11, 1883277), (17, 1218591), (27, 767261), (33, 627759), (51, 406197), (99, 209253), (121, 171207), (153, 135399), (187, 110781), (297, 69751), (363, 57069), (373, 55539), (459, 45133), (561, 36927), (1089, 19023), (1119, 18513), (1683, 12309), (2057, 10071), (3267, 6341), (3357, 6171), (4103, 5049)]