20599865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 29707776

約数和(自身を除く): 9107911

約数列:

[1, 5, 11, 13, 47, 55, 65, 143, 235, 517, 611, 613, 715, 2585, 3055, 3065, 6721, 6743, 7969, 28811, 33605, 33715, 39845, 87659, 144055, 316921, 374543, 438295, 1584605, 1872715, 4119973, 20599865]

約数ペア:

[(1, 20599865), (5, 4119973), (11, 1872715), (13, 1584605), (47, 438295), (55, 374543), (65, 316921), (143, 144055), (235, 87659), (517, 39845), (611, 33715), (613, 33605), (715, 28811), (2585, 7969), (3055, 6743), (3065, 6721)]