21036939

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{487}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 37384704

約数和(自身を除く): 16347765

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 121, 187, 231, 357, 363, 487, 561, 847, 1309, 1461, 2057, 2541, 3409, 3927, 5357, 6171, 8279, 10227, 14399, 16071, 24837, 37499, 43197, 57953, 58927, 91069, 112497, 173859, 176781, 273207, 412489, 637483, 1001759, 1237467, 1912449, 3005277, 7012313, 21036939]

約数ペア:

[(1, 21036939), (3, 7012313), (7, 3005277), (11, 1912449), (17, 1237467), (21, 1001759), (33, 637483), (51, 412489), (77, 273207), (119, 176781), (121, 173859), (187, 112497), (231, 91069), (357, 58927), (363, 57953), (487, 43197), (561, 37499), (847, 24837), (1309, 16071), (1461, 14399), (2057, 10227), (2541, 8279), (3409, 6171), (3927, 5357)]