18381605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{10781}}^1$

素因数の和:10828

約数の個数: 16

約数和(自身を含む): 24841728

約数和(自身を除く): 6460123

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 10781, 53905, 118591, 334211, 592955, 1671055, 3676321, 18381605]

約数ペア:

[(1, 18381605), (5, 3676321), (11, 1671055), (31, 592955), (55, 334211), (155, 118591), (341, 53905), (1705, 10781)]