21320484

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{19963}}^1$

素因数の和:20059

約数の個数: 24

約数和(自身を含む): 50309280

約数和(自身を除く): 28988796

約数列:

[1, 2, 3, 4, 6, 12, 89, 178, 267, 356, 534, 1068, 19963, 39926, 59889, 79852, 119778, 239556, 1776707, 3553414, 5330121, 7106828, 10660242, 21320484]

約数ペア:

[(1, 21320484), (2, 10660242), (3, 7106828), (4, 5330121), (6, 3553414), (12, 1776707), (89, 239556), (178, 119778), (267, 79852), (356, 59889), (534, 39926), (1068, 19963)]