20406435

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1783}}^1$

素因数の和:1907

約数の個数: 32

約数和(自身を含む): 37678080

約数和(自身を除く): 17271645

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 109, 327, 545, 763, 1635, 1783, 2289, 3815, 5349, 8915, 11445, 12481, 26745, 37443, 62405, 187215, 194347, 583041, 971735, 1360429, 2915205, 4081287, 6802145, 20406435]

約数ペア:

[(1, 20406435), (3, 6802145), (5, 4081287), (7, 2915205), (15, 1360429), (21, 971735), (35, 583041), (105, 194347), (109, 187215), (327, 62405), (545, 37443), (763, 26745), (1635, 12481), (1783, 11445), (2289, 8915), (3815, 5349)]