16920495

素因数分解:

$3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1019}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 31101840

約数和(自身を除く): 14181345

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 81, 123, 135, 205, 369, 405, 615, 1019, 1107, 1845, 3057, 3321, 5095, 5535, 9171, 15285, 16605, 27513, 41779, 45855, 82539, 125337, 137565, 208895, 376011, 412695, 626685, 1128033, 1880055, 3384099, 5640165, 16920495]

約数ペア:

[(1, 16920495), (3, 5640165), (5, 3384099), (9, 1880055), (15, 1128033), (27, 626685), (41, 412695), (45, 376011), (81, 208895), (123, 137565), (135, 125337), (205, 82539), (369, 45855), (405, 41779), (615, 27513), (1019, 16605), (1107, 15285), (1845, 9171), (3057, 5535), (3321, 5095)]