21573987

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{8053}}^1$

素因数の和:8122

約数の個数: 16

約数和(自身を含む): 30927360

約数和(自身を除く): 9353373

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 8053, 24159, 153007, 378491, 459021, 1135473, 7191329, 21573987]

約数ペア:

[(1, 21573987), (3, 7191329), (19, 1135473), (47, 459021), (57, 378491), (141, 153007), (893, 24159), (2679, 8053)]