21066668

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5657}}^1$

素因数の和:5694

約数の個数: 36

約数和(自身を含む): 45150840

約数和(自身を除く): 24084172

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5657, 11314, 22628, 39599, 79198, 107483, 158396, 214966, 277193, 429932, 554386, 752381, 1108772, 1504762, 3009524, 5266667, 10533334, 21066668]

約数ペア:

[(1, 21066668), (2, 10533334), (4, 5266667), (7, 3009524), (14, 1504762), (19, 1108772), (28, 752381), (38, 554386), (49, 429932), (76, 277193), (98, 214966), (133, 158396), (196, 107483), (266, 79198), (532, 39599), (931, 22628), (1862, 11314), (3724, 5657)]