21083256

素因数分解:

$2^3\times 3^2\times {\mathrm{443}}^1\times {\mathrm{661}}^1$

素因数の和:1116

約数の個数: 48

約数和(自身を含む): 57315960

約数和(自身を除く): 36232704

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 443, 661, 886, 1322, 1329, 1772, 1983, 2644, 2658, 3544, 3966, 3987, 5288, 5316, 5949, 7932, 7974, 10632, 11898, 15864, 15948, 23796, 31896, 47592, 292823, 585646, 878469, 1171292, 1756938, 2342584, 2635407, 3513876, 5270814, 7027752, 10541628, 21083256]

約数ペア:

[(1, 21083256), (2, 10541628), (3, 7027752), (4, 5270814), (6, 3513876), (8, 2635407), (9, 2342584), (12, 1756938), (18, 1171292), (24, 878469), (36, 585646), (72, 292823), (443, 47592), (661, 31896), (886, 23796), (1322, 15948), (1329, 15864), (1772, 11898), (1983, 10632), (2644, 7974), (2658, 7932), (3544, 5949), (3966, 5316), (3987, 5288)]