21329868

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{937}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 57150464

約数和(自身を除く): 35820596

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 271, 542, 813, 937, 1084, 1626, 1874, 1897, 2811, 3252, 3748, 3794, 5622, 5691, 6559, 7588, 11244, 11382, 13118, 19677, 22764, 26236, 39354, 78708, 253927, 507854, 761781, 1015708, 1523562, 1777489, 3047124, 3554978, 5332467, 7109956, 10664934, 21329868]

約数ペア:

[(1, 21329868), (2, 10664934), (3, 7109956), (4, 5332467), (6, 3554978), (7, 3047124), (12, 1777489), (14, 1523562), (21, 1015708), (28, 761781), (42, 507854), (84, 253927), (271, 78708), (542, 39354), (813, 26236), (937, 22764), (1084, 19677), (1626, 13118), (1874, 11382), (1897, 11244), (2811, 7588), (3252, 6559), (3748, 5691), (3794, 5622)]