21902727

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1789}}^1$

素因数の和:1863

約数の個数: 32

約数和(自身を含む): 37117440

約数和(自身を除く): 15214713

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 159, 231, 371, 583, 1113, 1749, 1789, 4081, 5367, 12243, 12523, 19679, 37569, 59037, 94817, 137753, 284451, 413259, 663719, 1042987, 1991157, 3128961, 7300909, 21902727]

約数ペア:

[(1, 21902727), (3, 7300909), (7, 3128961), (11, 1991157), (21, 1042987), (33, 663719), (53, 413259), (77, 284451), (159, 137753), (231, 94817), (371, 59037), (583, 37569), (1113, 19679), (1749, 12523), (1789, 12243), (4081, 5367)]