20365965

素因数分解:

$3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{587}}^1$

素因数の和:858

約数の個数: 32

約数和(自身を含む): 36408960

約数和(自身を除く): 16042995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 257, 587, 771, 1285, 1761, 2313, 2935, 3855, 5283, 6939, 8805, 11565, 15849, 26415, 34695, 79245, 150859, 452577, 754295, 1357731, 2262885, 4073193, 6788655, 20365965]

約数ペア:

[(1, 20365965), (3, 6788655), (5, 4073193), (9, 2262885), (15, 1357731), (27, 754295), (45, 452577), (135, 150859), (257, 79245), (587, 34695), (771, 26415), (1285, 15849), (1761, 11565), (2313, 8805), (2935, 6939), (3855, 5283)]