51681693

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 80640000

約数和(自身を除く): 28958307

約数列:

[1, 3, 7, 21, 83, 149, 199, 249, 447, 581, 597, 1043, 1393, 1743, 3129, 4179, 12367, 16517, 29651, 37101, 49551, 86569, 88953, 115619, 207557, 259707, 346857, 622671, 2461033, 7383099, 17227231, 51681693]

約数ペア:

[(1, 51681693), (3, 17227231), (7, 7383099), (21, 2461033), (83, 622671), (149, 346857), (199, 259707), (249, 207557), (447, 115619), (581, 88953), (597, 86569), (1043, 49551), (1393, 37101), (1743, 29651), (3129, 16517), (4179, 12367)]