21052306

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{86993}}^1$

素因数の和:87017

約数の個数: 12

約数和(自身を含む): 34710606

約数和(自身を除く): 13658300

約数列:

[1, 2, 11, 22, 121, 242, 86993, 173986, 956923, 1913846, 10526153, 21052306]

約数ペア:

[(1, 21052306), (2, 10526153), (11, 1913846), (22, 956923), (121, 173986), (242, 86993)]