20899035

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1607}}^1$

素因数の和:1652

約数の個数: 36

約数和(自身を含む): 38505168

約数和(自身を除く): 17606133

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 289, 765, 867, 1445, 1607, 2601, 4335, 4821, 8035, 13005, 14463, 24105, 27319, 72315, 81957, 136595, 245871, 409785, 464423, 1229355, 1393269, 2322115, 4179807, 6966345, 20899035]

約数ペア:

[(1, 20899035), (3, 6966345), (5, 4179807), (9, 2322115), (15, 1393269), (17, 1229355), (45, 464423), (51, 409785), (85, 245871), (153, 136595), (255, 81957), (289, 72315), (765, 27319), (867, 24105), (1445, 14463), (1607, 13005), (2601, 8035), (4335, 4821)]