21026786

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9463}}^1$

素因数の和:9577

約数の個数: 16

約数和(自身を含む): 34751808

約数和(自身を除く): 13725022

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 9463, 18926, 104093, 208186, 955763, 1911526, 10513393, 21026786]

約数ペア:

[(1, 21026786), (2, 10513393), (11, 1911526), (22, 955763), (101, 208186), (202, 104093), (1111, 18926), (2222, 9463)]