20405134

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:900

約数の個数: 24

約数和(自身を含む): 33310728

約数和(自身を除く): 12905594

約数列:

[1, 2, 17, 34, 43, 86, 289, 578, 731, 821, 1462, 1642, 12427, 13957, 24854, 27914, 35303, 70606, 237269, 474538, 600151, 1200302, 10202567, 20405134]

約数ペア:

[(1, 20405134), (2, 10202567), (17, 1200302), (34, 600151), (43, 474538), (86, 237269), (289, 70606), (578, 35303), (731, 27914), (821, 24854), (1462, 13957), (1642, 12427)]