28053285

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{491}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 48601728

約数和(自身を除く): 20548443

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 293, 491, 879, 1465, 1473, 2455, 3809, 4395, 6383, 7365, 11427, 19045, 19149, 31915, 57135, 95745, 143863, 431589, 719315, 1870219, 2157945, 5610657, 9351095, 28053285]

約数ペア:

[(1, 28053285), (3, 9351095), (5, 5610657), (13, 2157945), (15, 1870219), (39, 719315), (65, 431589), (195, 143863), (293, 95745), (491, 57135), (879, 31915), (1465, 19149), (1473, 19045), (2455, 11427), (3809, 7365), (4395, 6383)]