21459347

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7607}}^1$

素因数の和:7658

約数の個数: 16

約数和(自身を含む): 27267072

約数和(自身を除く): 5807725

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 7607, 53249, 98891, 235817, 692237, 1650719, 3065621, 21459347]

約数ペア:

[(1, 21459347), (7, 3065621), (13, 1650719), (31, 692237), (91, 235817), (217, 98891), (403, 53249), (2821, 7607)]