21860072

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{210193}}^1$

素因数の和:210212

約数の個数: 16

約数和(自身を含む): 44140740

約数和(自身を除く): 22280668

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 210193, 420386, 840772, 1681544, 2732509, 5465018, 10930036, 21860072]

約数ペア:

[(1, 21860072), (2, 10930036), (4, 5465018), (8, 2732509), (13, 1681544), (26, 840772), (52, 420386), (104, 210193)]