21354685

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{751}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 28804608

約数和(自身を除く): 7449923

約数列:

[1, 5, 11, 47, 55, 121, 235, 517, 605, 751, 2585, 3755, 5687, 8261, 28435, 35297, 41305, 90871, 176485, 388267, 454355, 1941335, 4270937, 21354685]

約数ペア:

[(1, 21354685), (5, 4270937), (11, 1941335), (47, 454355), (55, 388267), (121, 176485), (235, 90871), (517, 41305), (605, 35297), (751, 28435), (2585, 8261), (3755, 5687)]