20780051061

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{811}}^1\times {\mathrm{110921}}^1$

素因数の和:111753

約数の個数: 32

約数和(自身を含む): 34586366976

約数和(自身を除く): 13806315915

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 811, 2433, 5677, 8921, 17031, 26763, 62447, 110921, 187341, 332763, 776447, 1220131, 2329341, 3660393, 8540917, 25622751, 89956931, 269870793, 629698517, 989526241, 1889095551, 2968578723, 6926683687, 20780051061]

約数ペア:

[(1, 20780051061), (3, 6926683687), (7, 2968578723), (11, 1889095551), (21, 989526241), (33, 629698517), (77, 269870793), (231, 89956931), (811, 25622751), (2433, 8540917), (5677, 3660393), (8921, 2329341), (17031, 1220131), (26763, 776447), (62447, 332763), (110921, 187341)]