28705455

素因数分解:

$3^3\times 5^1\times {\mathrm{212633}}^1$

素因数の和:212647

約数の個数: 16

約数和(自身を含む): 51032160

約数和(自身を除く): 22326705

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 212633, 637899, 1063165, 1913697, 3189495, 5741091, 9568485, 28705455]

約数ペア:

[(1, 28705455), (3, 9568485), (5, 5741091), (9, 3189495), (15, 1913697), (27, 1063165), (45, 637899), (135, 212633)]