20206965

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{727}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 14387595

約数列:

[1, 3, 5, 15, 17, 51, 85, 109, 255, 327, 545, 727, 1635, 1853, 2181, 3635, 5559, 9265, 10905, 12359, 27795, 37077, 61795, 79243, 185385, 237729, 396215, 1188645, 1347131, 4041393, 6735655, 20206965]

約数ペア:

[(1, 20206965), (3, 6735655), (5, 4041393), (15, 1347131), (17, 1188645), (51, 396215), (85, 237729), (109, 185385), (255, 79243), (327, 61795), (545, 37077), (727, 27795), (1635, 12359), (1853, 10905), (2181, 9265), (3635, 5559)]