21477870904

素因数分解:

$2^3\times 7^2\times {\mathrm{71}}^1\times {\mathrm{771697}}^1$

素因数の和:771788

約数の個数: 48

約数和(自身を含む): 47505728880

約数和(自身を除く): 26027857976

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 71, 98, 142, 196, 284, 392, 497, 568, 994, 1988, 3479, 3976, 6958, 13916, 27832, 771697, 1543394, 3086788, 5401879, 6173576, 10803758, 21607516, 37813153, 43215032, 54790487, 75626306, 109580974, 151252612, 219161948, 302505224, 383533409, 438323896, 767066818, 1534133636, 2684733863, 3068267272, 5369467726, 10738935452, 21477870904]

約数ペア:

[(1, 21477870904), (2, 10738935452), (4, 5369467726), (7, 3068267272), (8, 2684733863), (14, 1534133636), (28, 767066818), (49, 438323896), (56, 383533409), (71, 302505224), (98, 219161948), (142, 151252612), (196, 109580974), (284, 75626306), (392, 54790487), (497, 43215032), (568, 37813153), (994, 21607516), (1988, 10803758), (3479, 6173576), (3976, 5401879), (6958, 3086788), (13916, 1543394), (27832, 771697)]