21541135

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7993}}^1$

素因数の和:8023

約数の個数: 24

約数和(自身を含む): 32807376

約数和(自身を除く): 11266241

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 7993, 39965, 55951, 87923, 279755, 391657, 439615, 615461, 1958285, 3077305, 4308227, 21541135]

約数ペア:

[(1, 21541135), (5, 4308227), (7, 3077305), (11, 1958285), (35, 615461), (49, 439615), (55, 391657), (77, 279755), (245, 87923), (385, 55951), (539, 39965), (2695, 7993)]