20493075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16073}}^1$

素因数の和:16103

約数の個数: 24

約数和(自身を含む): 35877168

約数和(自身を除く): 15384093

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16073, 48219, 80365, 241095, 273241, 401825, 819723, 1205475, 1366205, 4098615, 6831025, 20493075]

約数ペア:

[(1, 20493075), (3, 6831025), (5, 4098615), (15, 1366205), (17, 1205475), (25, 819723), (51, 401825), (75, 273241), (85, 241095), (255, 80365), (425, 48219), (1275, 16073)]