21374049

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 31781376

約数和(自身を除く): 10407327

約数列:

[1, 3, 17, 37, 47, 51, 111, 141, 241, 629, 723, 799, 1739, 1887, 2397, 4097, 5217, 8917, 11327, 12291, 26751, 29563, 33981, 88689, 151589, 192559, 419099, 454767, 577677, 1257297, 7124683, 21374049]

約数ペア:

[(1, 21374049), (3, 7124683), (17, 1257297), (37, 577677), (47, 454767), (51, 419099), (111, 192559), (141, 151589), (241, 88689), (629, 33981), (723, 29563), (799, 26751), (1739, 12291), (1887, 11327), (2397, 8917), (4097, 5217)]