21437172

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{8387}}^1$

素因数の和:8468

約数の個数: 36

約数和(自身を含む): 54958176

約数和(自身を除く): 33521004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 8387, 16774, 25161, 33548, 50322, 75483, 100644, 150966, 301932, 595477, 1190954, 1786431, 2381908, 3572862, 5359293, 7145724, 10718586, 21437172]

約数ペア:

[(1, 21437172), (2, 10718586), (3, 7145724), (4, 5359293), (6, 3572862), (9, 2381908), (12, 1786431), (18, 1190954), (36, 595477), (71, 301932), (142, 150966), (213, 100644), (284, 75483), (426, 50322), (639, 33548), (852, 25161), (1278, 16774), (2556, 8387)]