20808560451

素因数分解:

$3^1\times 7^3\times {\mathrm{101}}^1\times {\mathrm{347}}^1\times {\mathrm{577}}^1$

素因数の和:1049

約数の個数: 64

約数和(自身を含む): 32826700800

約数和(自身を除く): 12018140349

約数列:

[1, 3, 7, 21, 49, 101, 147, 303, 343, 347, 577, 707, 1029, 1041, 1731, 2121, 2429, 4039, 4949, 7287, 12117, 14847, 17003, 28273, 34643, 35047, 51009, 58277, 84819, 103929, 105141, 119021, 174831, 197911, 200219, 245329, 357063, 407939, 593733, 600657, 735987, 1223817, 1401533, 1717303, 2855573, 4204599, 5151909, 8566719, 9810731, 12021121, 19989011, 20222119, 29432193, 36063363, 59967033, 60666357, 68675117, 141554833, 206025351, 424664499, 990883831, 2972651493, 6936186817, 20808560451]

約数ペア:

[(1, 20808560451), (3, 6936186817), (7, 2972651493), (21, 990883831), (49, 424664499), (101, 206025351), (147, 141554833), (303, 68675117), (343, 60666357), (347, 59967033), (577, 36063363), (707, 29432193), (1029, 20222119), (1041, 19989011), (1731, 12021121), (2121, 9810731), (2429, 8566719), (4039, 5151909), (4949, 4204599), (7287, 2855573), (12117, 1717303), (14847, 1401533), (17003, 1223817), (28273, 735987), (34643, 600657), (35047, 593733), (51009, 407939), (58277, 357063), (84819, 245329), (103929, 200219), (105141, 197911), (119021, 174831)]