21091121566

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1\times {\mathrm{8863}}^1$

素因数の和:9444

約数の個数: 32

約数和(自身を含む): 33170860800

約数和(自身を除く): 12079739234

約数列:

[1, 2, 29, 58, 89, 178, 461, 922, 2581, 5162, 8863, 13369, 17726, 26738, 41029, 82058, 257027, 514054, 788807, 1189841, 1577614, 2379682, 4085843, 8171686, 22875403, 45750806, 118489447, 236978894, 363640027, 727280054, 10545560783, 21091121566]

約数ペア:

[(1, 21091121566), (2, 10545560783), (29, 727280054), (58, 363640027), (89, 236978894), (178, 118489447), (461, 45750806), (922, 22875403), (2581, 8171686), (5162, 4085843), (8863, 2379682), (13369, 1577614), (17726, 1189841), (26738, 788807), (41029, 514054), (82058, 257027)]