18881862913

素因数分解:

${\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{991}}^1\times {\mathrm{1987}}^1$

素因数の和:3244

約数の個数: 16

約数和(自身を含む): 19436978176

約数和(自身を除く): 555115263

約数列:

[1, 43, 223, 991, 1987, 9589, 42613, 85441, 220993, 443101, 1969117, 9502699, 19053343, 84672031, 439113091, 18881862913]

約数ペア:

[(1, 18881862913), (43, 439113091), (223, 84672031), (991, 19053343), (1987, 9502699), (9589, 1969117), (42613, 443101), (85441, 220993)]