261601417

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 334540800

約数和(自身を除く): 72939383

約数列:

[1, 7, 11, 71, 77, 109, 439, 497, 763, 781, 1199, 3073, 4829, 5467, 7739, 8393, 31169, 33803, 47851, 54173, 85129, 218183, 334957, 342859, 526361, 595903, 2400013, 3397421, 3684527, 23781947, 37371631, 261601417]

約数ペア:

[(1, 261601417), (7, 37371631), (11, 23781947), (71, 3684527), (77, 3397421), (109, 2400013), (439, 595903), (497, 526361), (763, 342859), (781, 334957), (1199, 218183), (3073, 85129), (4829, 54173), (5467, 47851), (7739, 33803), (8393, 31169)]