28144221

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 44233728

約数和(自身を除く): 16089507

約数列:

[1, 3, 7, 21, 67, 83, 201, 241, 249, 469, 581, 723, 1407, 1687, 1743, 5061, 5561, 16147, 16683, 20003, 38927, 48441, 60009, 113029, 116781, 140021, 339087, 420063, 1340201, 4020603, 9381407, 28144221]

約数ペア:

[(1, 28144221), (3, 9381407), (7, 4020603), (21, 1340201), (67, 420063), (83, 339087), (201, 140021), (241, 116781), (249, 113029), (469, 60009), (581, 48441), (723, 38927), (1407, 20003), (1687, 16683), (1743, 16147), (5061, 5561)]