201921412

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{557}}^1$

素因数の和:697

約数の個数: 72

約数和(自身を含む): 448846272

約数和(自身を除く): 246924860

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 107, 121, 154, 214, 242, 308, 428, 484, 557, 749, 847, 1114, 1177, 1498, 1694, 2228, 2354, 2996, 3388, 3899, 4708, 6127, 7798, 8239, 12254, 12947, 15596, 16478, 24508, 25894, 32956, 42889, 51788, 59599, 67397, 85778, 90629, 119198, 134794, 171556, 181258, 238396, 269588, 362516, 417193, 471779, 655589, 834386, 943558, 1311178, 1668772, 1887116, 2622356, 4589123, 7211479, 9178246, 14422958, 18356492, 28845916, 50480353, 100960706, 201921412]

約数ペア:

[(1, 201921412), (2, 100960706), (4, 50480353), (7, 28845916), (11, 18356492), (14, 14422958), (22, 9178246), (28, 7211479), (44, 4589123), (77, 2622356), (107, 1887116), (121, 1668772), (154, 1311178), (214, 943558), (242, 834386), (308, 655589), (428, 471779), (484, 417193), (557, 362516), (749, 269588), (847, 238396), (1114, 181258), (1177, 171556), (1498, 134794), (1694, 119198), (2228, 90629), (2354, 85778), (2996, 67397), (3388, 59599), (3899, 51788), (4708, 42889), (6127, 32956), (7798, 25894), (8239, 24508), (12254, 16478), (12947, 15596)]