17778865851

素因数分解:

$3^6\times {\mathrm{1109}}^1\times {\mathrm{21991}}^1$

素因数の和:23118

約数の個数: 28

約数和(自身を含む): 26681354160

約数和(自身を除く): 8902488309

約数列:

[1, 3, 9, 27, 81, 243, 729, 1109, 3327, 9981, 21991, 29943, 65973, 89829, 197919, 269487, 593757, 808461, 1781271, 5343813, 16031439, 24388019, 73164057, 219492171, 658476513, 1975429539, 5926288617, 17778865851]

約数ペア:

[(1, 17778865851), (3, 5926288617), (9, 1975429539), (27, 658476513), (81, 219492171), (243, 73164057), (729, 24388019), (1109, 16031439), (3327, 5343813), (9981, 1781271), (21991, 808461), (29943, 593757), (65973, 269487), (89829, 197919)]