28221999

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{6763}}^1$

素因数の和:6886

約数の個数: 16

約数和(自身を含む): 40908672

約数和(自身を除く): 12686673

約数列:

[1, 3, 13, 39, 107, 321, 1391, 4173, 6763, 20289, 87919, 263757, 723641, 2170923, 9407333, 28221999]

約数ペア:

[(1, 28221999), (3, 9407333), (13, 2170923), (39, 723641), (107, 263757), (321, 87919), (1391, 20289), (4173, 6763)]