20706616

素因数分解:

$2^3\times 7^2\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 45698040

約数和(自身を除く): 24991424

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 101, 196, 202, 392, 404, 523, 707, 808, 1046, 1414, 2092, 2828, 3661, 4184, 4949, 5656, 7322, 9898, 14644, 19796, 25627, 29288, 39592, 51254, 52823, 102508, 105646, 205016, 211292, 369761, 422584, 739522, 1479044, 2588327, 2958088, 5176654, 10353308, 20706616]

約数ペア:

[(1, 20706616), (2, 10353308), (4, 5176654), (7, 2958088), (8, 2588327), (14, 1479044), (28, 739522), (49, 422584), (56, 369761), (98, 211292), (101, 205016), (196, 105646), (202, 102508), (392, 52823), (404, 51254), (523, 39592), (707, 29288), (808, 25627), (1046, 19796), (1414, 14644), (2092, 9898), (2828, 7322), (3661, 5656), (4184, 4949)]