21589486

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{653}}^1$

素因数の和:987

約数の個数: 16

約数和(自身を含む): 33087168

約数和(自身を除く): 11497682

約数列:

[1, 2, 61, 122, 271, 542, 653, 1306, 16531, 33062, 39833, 79666, 176963, 353926, 10794743, 21589486]

約数ペア:

[(1, 21589486), (2, 10794743), (61, 353926), (122, 176963), (271, 79666), (542, 39833), (653, 33062), (1306, 16531)]