20907994

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{593}}^1$

素因数の和:690

約数の個数: 24

約数和(自身を含む): 33918588

約数和(自身を除く): 13010594

約数列:

[1, 2, 17, 34, 61, 122, 289, 578, 593, 1037, 1186, 2074, 10081, 17629, 20162, 35258, 36173, 72346, 171377, 342754, 614941, 1229882, 10453997, 20907994]

約数ペア:

[(1, 20907994), (2, 10453997), (17, 1229882), (34, 614941), (61, 342754), (122, 171377), (289, 72346), (578, 36173), (593, 35258), (1037, 20162), (1186, 17629), (2074, 10081)]