20770953

素因数分解:

$3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{1399}}^1$

素因数の和:1517

約数の個数: 24

約数和(自身を含む): 32558400

約数和(自身を除く): 11787447

約数列:

[1, 3, 7, 21, 49, 101, 147, 303, 707, 1399, 2121, 4197, 4949, 9793, 14847, 29379, 68551, 141299, 205653, 423897, 989093, 2967279, 6923651, 20770953]

約数ペア:

[(1, 20770953), (3, 6923651), (7, 2967279), (21, 989093), (49, 423897), (101, 205653), (147, 141299), (303, 68551), (707, 29379), (1399, 14847), (2121, 9793), (4197, 4949)]