20319804

素因数分解:

$2^2\times 3^2\times {\mathrm{389}}^1\times {\mathrm{1451}}^1$

素因数の和:1850

約数の個数: 36

約数和(自身を含む): 51531480

約数和(自身を除く): 31211676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 389, 778, 1167, 1451, 1556, 2334, 2902, 3501, 4353, 4668, 5804, 7002, 8706, 13059, 14004, 17412, 26118, 52236, 564439, 1128878, 1693317, 2257756, 3386634, 5079951, 6773268, 10159902, 20319804]

約数ペア:

[(1, 20319804), (2, 10159902), (3, 6773268), (4, 5079951), (6, 3386634), (9, 2257756), (12, 1693317), (18, 1128878), (36, 564439), (389, 52236), (778, 26118), (1167, 17412), (1451, 14004), (1556, 13059), (2334, 8706), (2902, 7002), (3501, 5804), (4353, 4668)]