20785254

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:749

約数の個数: 64

約数和(自身を含む): 51549696

約数和(自身を除く): 30764442

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 43, 51, 86, 102, 119, 129, 238, 258, 301, 357, 602, 677, 714, 731, 903, 1354, 1462, 1806, 2031, 2193, 4062, 4386, 4739, 5117, 9478, 10234, 11509, 14217, 15351, 23018, 28434, 29111, 30702, 34527, 58222, 69054, 80563, 87333, 161126, 174666, 203777, 241689, 407554, 483378, 494887, 611331, 989774, 1222662, 1484661, 2969322, 3464209, 6928418, 10392627, 20785254]

約数ペア:

[(1, 20785254), (2, 10392627), (3, 6928418), (6, 3464209), (7, 2969322), (14, 1484661), (17, 1222662), (21, 989774), (34, 611331), (42, 494887), (43, 483378), (51, 407554), (86, 241689), (102, 203777), (119, 174666), (129, 161126), (238, 87333), (258, 80563), (301, 69054), (357, 58222), (602, 34527), (677, 30702), (714, 29111), (731, 28434), (903, 23018), (1354, 15351), (1462, 14217), (1806, 11509), (2031, 10234), (2193, 9478), (4062, 5117), (4386, 4739)]