20558216

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12659}}^1$

素因数の和:12701

約数の個数: 32

約数和(自身を含む): 45576000

約数和(自身を除く): 25017784

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12659, 25318, 50636, 88613, 101272, 177226, 354452, 367111, 708904, 734222, 1468444, 2569777, 2936888, 5139554, 10279108, 20558216]

約数ペア:

[(1, 20558216), (2, 10279108), (4, 5139554), (7, 2936888), (8, 2569777), (14, 1468444), (28, 734222), (29, 708904), (56, 367111), (58, 354452), (116, 177226), (203, 101272), (232, 88613), (406, 50636), (812, 25318), (1624, 12659)]