21819112

素因数分解:

$2^3\times 7^2\times {\mathrm{55661}}^1$

素因数の和:55681

約数の個数: 24

約数和(自身を含む): 47591010

約数和(自身を除く): 25771898

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55661, 111322, 222644, 389627, 445288, 779254, 1558508, 2727389, 3117016, 5454778, 10909556, 21819112]

約数ペア:

[(1, 21819112), (2, 10909556), (4, 5454778), (7, 3117016), (8, 2727389), (14, 1558508), (28, 779254), (49, 445288), (56, 389627), (98, 222644), (196, 111322), (392, 55661)]