21000409011

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{751}}^1\times {\mathrm{66107}}^1$

素因数の和:66911

約数の個数: 24

約数和(自身を含む): 31021046784

約数和(自身を除く): 10020637773

約数列:

[1, 3, 9, 47, 141, 423, 751, 2253, 6759, 35297, 66107, 105891, 198321, 317673, 594963, 3107029, 9321087, 27963261, 49646357, 148939071, 446817213, 2333378779, 7000136337, 21000409011]

約数ペア:

[(1, 21000409011), (3, 7000136337), (9, 2333378779), (47, 446817213), (141, 148939071), (423, 49646357), (751, 27963261), (2253, 9321087), (6759, 3107029), (35297, 594963), (66107, 317673), (105891, 198321)]