18951855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5717}}^1$

素因数の和:5755

約数の個数: 32

約数和(自身を含む): 34582464

約数和(自身を除く): 15630609

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 5717, 17151, 28585, 74321, 85755, 97189, 222963, 291567, 371605, 485945, 1114815, 1263457, 1457835, 3790371, 6317285, 18951855]

約数ペア:

[(1, 18951855), (3, 6317285), (5, 3790371), (13, 1457835), (15, 1263457), (17, 1114815), (39, 485945), (51, 371605), (65, 291567), (85, 222963), (195, 97189), (221, 85755), (255, 74321), (663, 28585), (1105, 17151), (3315, 5717)]