20315554

素因数分解:

$2^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{9739}}^1$

素因数の和:9897

約数の個数: 16

約数和(自身を含む): 35064000

約数和(自身を除く): 14748446

約数列:

[1, 2, 7, 14, 149, 298, 1043, 2086, 9739, 19478, 68173, 136346, 1451111, 2902222, 10157777, 20315554]

約数ペア:

[(1, 20315554), (2, 10157777), (7, 2902222), (14, 1451111), (149, 136346), (298, 68173), (1043, 19478), (2086, 9739)]