20554485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10303}}^1$

素因数の和:10337

約数の個数: 32

約数和(自身を含む): 39567360

約数和(自身を除く): 19012875

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10303, 30909, 51515, 72121, 154545, 195757, 216363, 360605, 587271, 978785, 1081815, 1370299, 2936355, 4110897, 6851495, 20554485]

約数ペア:

[(1, 20554485), (3, 6851495), (5, 4110897), (7, 2936355), (15, 1370299), (19, 1081815), (21, 978785), (35, 587271), (57, 360605), (95, 216363), (105, 195757), (133, 154545), (285, 72121), (399, 51515), (665, 30909), (1995, 10303)]