21124516

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24337}}^1$

素因数の和:24379

約数の個数: 24

約数和(自身を含む): 43613696

約数和(自身を除く): 22489180

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24337, 48674, 97348, 170359, 340718, 681436, 754447, 1508894, 3017788, 5281129, 10562258, 21124516]

約数ペア:

[(1, 21124516), (2, 10562258), (4, 5281129), (7, 3017788), (14, 1508894), (28, 754447), (31, 681436), (62, 340718), (124, 170359), (217, 97348), (434, 48674), (868, 24337)]