28208115

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16073}}^1$

素因数の和:16100

約数の個数: 32

約数和(自身を含む): 54008640

約数和(自身を除く): 25800525

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 16073, 48219, 80365, 144657, 208949, 241095, 433971, 626847, 723285, 1044745, 1880541, 2169855, 3134235, 5641623, 9402705, 28208115]

約数ペア:

[(1, 28208115), (3, 9402705), (5, 5641623), (9, 3134235), (13, 2169855), (15, 1880541), (27, 1044745), (39, 723285), (45, 626847), (65, 433971), (117, 241095), (135, 208949), (195, 144657), (351, 80365), (585, 48219), (1755, 16073)]