20706812

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3643}}^1$

素因数の和:3690

約数の個数: 36

約数和(自身を含む): 43618680

約数和(自身を除く): 22911868

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3643, 5684, 7286, 14572, 25501, 51002, 102004, 105647, 178507, 211294, 357014, 422588, 714028, 739529, 1479058, 2958116, 5176703, 10353406, 20706812]

約数ペア:

[(1, 20706812), (2, 10353406), (4, 5176703), (7, 2958116), (14, 1479058), (28, 739529), (29, 714028), (49, 422588), (58, 357014), (98, 211294), (116, 178507), (196, 105647), (203, 102004), (406, 51002), (812, 25501), (1421, 14572), (2842, 7286), (3643, 5684)]