21806358

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3307}}^1$

素因数の和:3476

約数の個数: 32

約数和(自身を含む): 50175744

約数和(自身を除く): 28369386

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 157, 314, 471, 942, 1099, 2198, 3297, 3307, 6594, 6614, 9921, 19842, 23149, 46298, 69447, 138894, 519199, 1038398, 1557597, 3115194, 3634393, 7268786, 10903179, 21806358]

約数ペア:

[(1, 21806358), (2, 10903179), (3, 7268786), (6, 3634393), (7, 3115194), (14, 1557597), (21, 1038398), (42, 519199), (157, 138894), (314, 69447), (471, 46298), (942, 23149), (1099, 19842), (2198, 9921), (3297, 6614), (3307, 6594)]