1320221721

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4835977}}^1$

素因数の和:4836000

約数の個数: 16

約数和(自身を含む): 2166518144

約数和(自身を除く): 846296423

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 4835977, 14507931, 33851839, 62867701, 101555517, 188603103, 440073907, 1320221721]

約数ペア:

[(1, 1320221721), (3, 440073907), (7, 188603103), (13, 101555517), (21, 62867701), (39, 33851839), (91, 14507931), (273, 4835977)]