20200509

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1549}}^1$

素因数の和:1591

約数の個数: 40

約数和(自身を含む): 36009600

約数和(自身を除く): 15809091

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 483, 567, 621, 1449, 1549, 1863, 4347, 4647, 10843, 13041, 13941, 32529, 35627, 41823, 97587, 106881, 125469, 249389, 292761, 320643, 748167, 878283, 961929, 2244501, 2885787, 6733503, 20200509]

約数ペア:

[(1, 20200509), (3, 6733503), (7, 2885787), (9, 2244501), (21, 961929), (23, 878283), (27, 748167), (63, 320643), (69, 292761), (81, 249389), (161, 125469), (189, 106881), (207, 97587), (483, 41823), (567, 35627), (621, 32529), (1449, 13941), (1549, 13041), (1863, 10843), (4347, 4647)]