20647381727

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{369581}}^1$

素因数の和:369958

約数の個数: 16

約数和(自身を含む): 24693990912

約数和(自身を除く): 4046609185

約数列:

[1, 7, 23, 161, 347, 2429, 7981, 55867, 369581, 2587067, 8500363, 59502541, 128244607, 897712249, 2949625961, 20647381727]

約数ペア:

[(1, 20647381727), (7, 2949625961), (23, 897712249), (161, 128244607), (347, 59502541), (2429, 8500363), (7981, 2587067), (55867, 369581)]