21779618

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{769}}^1$

素因数の和:819

約数の個数: 36

約数和(自身を含む): 40422690

約数和(自身を除く): 18643072

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 289, 578, 769, 833, 1538, 1666, 2023, 4046, 5383, 10766, 13073, 14161, 26146, 28322, 37681, 75362, 91511, 183022, 222241, 444482, 640577, 1281154, 1555687, 3111374, 10889809, 21779618]

約数ペア:

[(1, 21779618), (2, 10889809), (7, 3111374), (14, 1555687), (17, 1281154), (34, 640577), (49, 444482), (98, 222241), (119, 183022), (238, 91511), (289, 75362), (578, 37681), (769, 28322), (833, 26146), (1538, 14161), (1666, 13073), (2023, 10766), (4046, 5383)]