20972994

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{3307}}^1$

素因数の和:3470

約数の個数: 32

約数和(自身を含む): 48270336

約数和(自身を除く): 27297342

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 151, 302, 453, 906, 1057, 2114, 3171, 3307, 6342, 6614, 9921, 19842, 23149, 46298, 69447, 138894, 499357, 998714, 1498071, 2996142, 3495499, 6990998, 10486497, 20972994]

約数ペア:

[(1, 20972994), (2, 10486497), (3, 6990998), (6, 3495499), (7, 2996142), (14, 1498071), (21, 998714), (42, 499357), (151, 138894), (302, 69447), (453, 46298), (906, 23149), (1057, 19842), (2114, 9921), (3171, 6614), (3307, 6342)]