20694411

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 31393440

約数和(自身を除く): 10699029

約数列:

[1, 3, 9, 23, 69, 207, 257, 389, 771, 1167, 2313, 3501, 5911, 8947, 17733, 26841, 53199, 80523, 99973, 299919, 899757, 2299379, 6898137, 20694411]

約数ペア:

[(1, 20694411), (3, 6898137), (9, 2299379), (23, 899757), (69, 299919), (207, 99973), (257, 80523), (389, 53199), (771, 26841), (1167, 17733), (2313, 8947), (3501, 5911)]