20419994

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{23911}}^1$

素因数の和:23981

約数の個数: 16

約数和(自身を含む): 35581056

約数和(自身を除く): 15161062

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 23911, 47822, 167377, 334754, 1458571, 2917142, 10209997, 20419994]

約数ペア:

[(1, 20419994), (2, 10209997), (7, 2917142), (14, 1458571), (61, 334754), (122, 167377), (427, 47822), (854, 23911)]