20585978

素因数分解:

$2^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2659}}^1$

素因数の和:2754

約数の個数: 24

約数和(自身を含む): 36388800

約数和(自身を除く): 15802822

約数列:

[1, 2, 7, 14, 49, 79, 98, 158, 553, 1106, 2659, 3871, 5318, 7742, 18613, 37226, 130291, 210061, 260582, 420122, 1470427, 2940854, 10292989, 20585978]

約数ペア:

[(1, 20585978), (2, 10292989), (7, 2940854), (14, 1470427), (49, 420122), (79, 260582), (98, 210061), (158, 130291), (553, 37226), (1106, 18613), (2659, 7742), (3871, 5318)]