21530768

素因数分解:

$2^4\times 7^1\times {\mathrm{192239}}^1$

素因数の和:192254

約数の個数: 20

約数和(自身を含む): 47675520

約数和(自身を除く): 26144752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 192239, 384478, 768956, 1345673, 1537912, 2691346, 3075824, 5382692, 10765384, 21530768]

約数ペア:

[(1, 21530768), (2, 10765384), (4, 5382692), (7, 3075824), (8, 2691346), (14, 1537912), (16, 1345673), (28, 768956), (56, 384478), (112, 192239)]