19890285

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{57653}}^1$

素因数の和:57684

約数の個数: 16

約数和(自身を含む): 33208704

約数和(自身を除く): 13318419

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 57653, 172959, 288265, 864795, 1326019, 3978057, 6630095, 19890285]

約数ペア:

[(1, 19890285), (3, 6630095), (5, 3978057), (15, 1326019), (23, 864795), (69, 288265), (115, 172959), (345, 57653)]