21573738

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1117}}^1$

素因数の和:1191

約数の個数: 48

約数和(自身を含む): 49706280

約数和(自身を除く): 28132542

約数列:

[1, 2, 3, 6, 9, 18, 29, 37, 58, 74, 87, 111, 174, 222, 261, 333, 522, 666, 1073, 1117, 2146, 2234, 3219, 3351, 6438, 6702, 9657, 10053, 19314, 20106, 32393, 41329, 64786, 82658, 97179, 123987, 194358, 247974, 291537, 371961, 583074, 743922, 1198541, 2397082, 3595623, 7191246, 10786869, 21573738]

約数ペア:

[(1, 21573738), (2, 10786869), (3, 7191246), (6, 3595623), (9, 2397082), (18, 1198541), (29, 743922), (37, 583074), (58, 371961), (74, 291537), (87, 247974), (111, 194358), (174, 123987), (222, 97179), (261, 82658), (333, 64786), (522, 41329), (666, 32393), (1073, 20106), (1117, 19314), (2146, 10053), (2234, 9657), (3219, 6702), (3351, 6438)]