19856085

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{77867}}^1$

素因数の和:77892

約数の個数: 16

約数和(自身を含む): 33638976

約数和(自身を除く): 13782891

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 77867, 233601, 389335, 1168005, 1323739, 3971217, 6618695, 19856085]

約数ペア:

[(1, 19856085), (3, 6618695), (5, 3971217), (15, 1323739), (17, 1168005), (51, 389335), (85, 233601), (255, 77867)]