21320028

素因数分解:

$2^2\times 3^2\times {\mathrm{592223}}^1$

素因数の和:592233

約数の個数: 18

約数和(自身を含む): 53892384

約数和(自身を除く): 32572356

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 592223, 1184446, 1776669, 2368892, 3553338, 5330007, 7106676, 10660014, 21320028]

約数ペア:

[(1, 21320028), (2, 10660014), (3, 7106676), (4, 5330007), (6, 3553338), (9, 2368892), (12, 1776669), (18, 1184446), (36, 592223)]