21164440496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77810443}}^1$

素因数の和:77810468

約数の個数: 20

約数和(自身を含む): 43418227752

約数和(自身を除く): 22253787256

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77810443, 155620886, 311241772, 622483544, 1244967088, 1322777531, 2645555062, 5291110124, 10582220248, 21164440496]

約数ペア:

[(1, 21164440496), (2, 10582220248), (4, 5291110124), (8, 2645555062), (16, 1322777531), (17, 1244967088), (34, 622483544), (68, 311241772), (136, 155620886), (272, 77810443)]