18789471

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{541}}^1$

素因数の和:791

約数の個数: 24

約数和(自身を含む): 28916784

約数和(自身を除く): 10127313

約数列:

[1, 3, 9, 17, 51, 153, 227, 541, 681, 1623, 2043, 3859, 4869, 9197, 11577, 27591, 34731, 82773, 122807, 368421, 1105263, 2087719, 6263157, 18789471]

約数ペア:

[(1, 18789471), (3, 6263157), (9, 2087719), (17, 1105263), (51, 368421), (153, 122807), (227, 82773), (541, 34731), (681, 27591), (1623, 11577), (2043, 9197), (3859, 4869)]