20407868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{10607}}^1$

素因数の和:10661

約数の個数: 24

約数和(自身を含む): 39504192

約数和(自身を除く): 19096324

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 10607, 21214, 42428, 137891, 275782, 392459, 551564, 784918, 1569836, 5101967, 10203934, 20407868]

約数ペア:

[(1, 20407868), (2, 10203934), (4, 5101967), (13, 1569836), (26, 784918), (37, 551564), (52, 392459), (74, 275782), (148, 137891), (481, 42428), (962, 21214), (1924, 10607)]