21156704

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{38891}}^1$

素因数の和:38918

約数の個数: 24

約数和(自身を含む): 44103528

約数和(自身を除く): 22946824

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 38891, 77782, 155564, 311128, 622256, 661147, 1244512, 1322294, 2644588, 5289176, 10578352, 21156704]

約数ペア:

[(1, 21156704), (2, 10578352), (4, 5289176), (8, 2644588), (16, 1322294), (17, 1244512), (32, 661147), (34, 622256), (68, 311128), (136, 155564), (272, 77782), (544, 38891)]