21073511900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{310361}}^1$

素因数の和:310479

約数の個数: 72

約数和(自身を含む): 52801266336

約数和(自身を除く): 31727754436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 97, 100, 140, 175, 194, 350, 388, 485, 679, 700, 970, 1358, 1940, 2425, 2716, 3395, 4850, 6790, 9700, 13580, 16975, 33950, 67900, 310361, 620722, 1241444, 1551805, 2172527, 3103610, 4345054, 6207220, 7759025, 8690108, 10862635, 15518050, 21725270, 30105017, 31036100, 43450540, 54313175, 60210034, 108626350, 120420068, 150525085, 210735119, 217252700, 301050170, 421470238, 602100340, 752625425, 842940476, 1053675595, 1505250850, 2107351190, 3010501700, 4214702380, 5268377975, 10536755950, 21073511900]

約数ペア:

[(1, 21073511900), (2, 10536755950), (4, 5268377975), (5, 4214702380), (7, 3010501700), (10, 2107351190), (14, 1505250850), (20, 1053675595), (25, 842940476), (28, 752625425), (35, 602100340), (50, 421470238), (70, 301050170), (97, 217252700), (100, 210735119), (140, 150525085), (175, 120420068), (194, 108626350), (350, 60210034), (388, 54313175), (485, 43450540), (679, 31036100), (700, 30105017), (970, 21725270), (1358, 15518050), (1940, 10862635), (2425, 8690108), (2716, 7759025), (3395, 6207220), (4850, 4345054), (6790, 3103610), (9700, 2172527), (13580, 1551805), (16975, 1241444), (33950, 620722), (67900, 310361)]