20268165

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1303}}^1$

素因数の和:1389

約数の個数: 32

約数和(自身を含む): 34926336

約数和(自身を除く): 14658171

約数列:

[1, 3, 5, 15, 17, 51, 61, 85, 183, 255, 305, 915, 1037, 1303, 3111, 3909, 5185, 6515, 15555, 19545, 22151, 66453, 79483, 110755, 238449, 332265, 397415, 1192245, 1351211, 4053633, 6756055, 20268165]

約数ペア:

[(1, 20268165), (3, 6756055), (5, 4053633), (15, 1351211), (17, 1192245), (51, 397415), (61, 332265), (85, 238449), (183, 110755), (255, 79483), (305, 66453), (915, 22151), (1037, 19545), (1303, 15555), (3111, 6515), (3909, 5185)]