18986025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{14891}}^1$

素因数の和:14921

約数の個数: 24

約数和(自身を含む): 33238944

約数和(自身を除く): 14252919

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 14891, 44673, 74455, 223365, 253147, 372275, 759441, 1116825, 1265735, 3797205, 6328675, 18986025]

約数ペア:

[(1, 18986025), (3, 6328675), (5, 3797205), (15, 1265735), (17, 1116825), (25, 759441), (51, 372275), (75, 253147), (85, 223365), (255, 74455), (425, 44673), (1275, 14891)]