20954164

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9719}}^1$

素因数の和:9748

約数の個数: 36

約数和(自身を含む): 46539360

約数和(自身を除く): 25585196

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9719, 19438, 38876, 68033, 106909, 136066, 213818, 272132, 427636, 476231, 748363, 952462, 1496726, 1904924, 2993452, 5238541, 10477082, 20954164]

約数ペア:

[(1, 20954164), (2, 10477082), (4, 5238541), (7, 2993452), (11, 1904924), (14, 1496726), (22, 952462), (28, 748363), (44, 476231), (49, 427636), (77, 272132), (98, 213818), (154, 136066), (196, 106909), (308, 68033), (539, 38876), (1078, 19438), (2156, 9719)]