64991278

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{2659}}^1$

素因数の和:2784

約数の個数: 24

約数和(自身を含む): 108256680

約数和(自身を除く): 43265402

約数列:

[1, 2, 11, 22, 101, 121, 202, 242, 1111, 2222, 2659, 5318, 12221, 24442, 29249, 58498, 268559, 321739, 537118, 643478, 2954149, 5908298, 32495639, 64991278]

約数ペア:

[(1, 64991278), (2, 32495639), (11, 5908298), (22, 2954149), (101, 643478), (121, 537118), (202, 321739), (242, 268559), (1111, 58498), (2222, 29249), (2659, 24442), (5318, 12221)]