21304899

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 38997504

約数和(自身を除く): 17692605

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 71, 77, 99, 213, 231, 433, 497, 639, 693, 781, 1299, 1491, 2343, 3031, 3897, 4473, 4763, 5467, 7029, 9093, 14289, 16401, 27279, 30743, 33341, 42867, 49203, 92229, 100023, 215201, 276687, 300069, 338173, 645603, 1014519, 1936809, 2367211, 3043557, 7101633, 21304899]

約数ペア:

[(1, 21304899), (3, 7101633), (7, 3043557), (9, 2367211), (11, 1936809), (21, 1014519), (33, 645603), (63, 338173), (71, 300069), (77, 276687), (99, 215201), (213, 100023), (231, 92229), (433, 49203), (497, 42867), (639, 33341), (693, 30743), (781, 27279), (1299, 16401), (1491, 14289), (2343, 9093), (3031, 7029), (3897, 5467), (4473, 4763)]