20699252

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12119}}^1$

素因数の和:12191

約数の個数: 24

約数和(自身を含む): 42080640

約数和(自身を除く): 21381388

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12119, 24238, 48476, 84833, 169666, 339332, 739259, 1478518, 2957036, 5174813, 10349626, 20699252]

約数ペア:

[(1, 20699252), (2, 10349626), (4, 5174813), (7, 2957036), (14, 1478518), (28, 739259), (61, 339332), (122, 169666), (244, 84833), (427, 48476), (854, 24238), (1708, 12119)]