20995107

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{5779}}^1$

素因数の和:5962

約数の個数: 16

約数和(自身を含む): 32183040

約数和(自身を除く): 11187933

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 5779, 17337, 40453, 121359, 999767, 2999301, 6998369, 20995107]

約数ペア:

[(1, 20995107), (3, 6998369), (7, 2999301), (21, 999767), (173, 121359), (519, 40453), (1211, 17337), (3633, 5779)]