21994005

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7841}}^1$

素因数の和:7877

約数の個数: 32

約数和(自身を含む): 40652928

約数和(自身を除く): 18658923

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7841, 23523, 39205, 86251, 117615, 133297, 258753, 399891, 431255, 666485, 1293765, 1466267, 1999455, 4398801, 7331335, 21994005]

約数ペア:

[(1, 21994005), (3, 7331335), (5, 4398801), (11, 1999455), (15, 1466267), (17, 1293765), (33, 666485), (51, 431255), (55, 399891), (85, 258753), (165, 133297), (187, 117615), (255, 86251), (561, 39205), (935, 23523), (2805, 7841)]