21508715910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{907}}^1\times {\mathrm{71861}}^1$

素因数の和:72789

約数の個数: 64

約数和(自身を含む): 56376601344

約数和(自身を除く): 34867885434

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330, 907, 1814, 2721, 4535, 5442, 9070, 9977, 13605, 19954, 27210, 29931, 49885, 59862, 71861, 99770, 143722, 149655, 215583, 299310, 359305, 431166, 718610, 790471, 1077915, 1580942, 2155830, 2371413, 3952355, 4742826, 7904710, 11857065, 23714130, 65177927, 130355854, 195533781, 325889635, 391067562, 651779270, 716957197, 977668905, 1433914394, 1955337810, 2150871591, 3584785985, 4301743182, 7169571970, 10754357955, 21508715910]

約数ペア:

[(1, 21508715910), (2, 10754357955), (3, 7169571970), (5, 4301743182), (6, 3584785985), (10, 2150871591), (11, 1955337810), (15, 1433914394), (22, 977668905), (30, 716957197), (33, 651779270), (55, 391067562), (66, 325889635), (110, 195533781), (165, 130355854), (330, 65177927), (907, 23714130), (1814, 11857065), (2721, 7904710), (4535, 4742826), (5442, 3952355), (9070, 2371413), (9977, 2155830), (13605, 1580942), (19954, 1077915), (27210, 790471), (29931, 718610), (49885, 431166), (59862, 359305), (71861, 299310), (99770, 215583), (143722, 149655)]