21000768292

素因数分解:

$2^2\times 7^2\times {\mathrm{499}}^1\times {\mathrm{214723}}^1$

素因数の和:215240

約数の個数: 36

約数和(自身を含む): 42837438000

約数和(自身を除く): 21836669708

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 499, 998, 1996, 3493, 6986, 13972, 24451, 48902, 97804, 214723, 429446, 858892, 1503061, 3006122, 6012244, 10521427, 21042854, 42085708, 107146777, 214293554, 428587108, 750027439, 1500054878, 3000109756, 5250192073, 10500384146, 21000768292]

約数ペア:

[(1, 21000768292), (2, 10500384146), (4, 5250192073), (7, 3000109756), (14, 1500054878), (28, 750027439), (49, 428587108), (98, 214293554), (196, 107146777), (499, 42085708), (998, 21042854), (1996, 10521427), (3493, 6012244), (6986, 3006122), (13972, 1503061), (24451, 858892), (48902, 429446), (97804, 214723)]