20551356

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{81553}}^1$

素因数の和:81570

約数の個数: 36

約数和(自身を含む): 59371312

約数和(自身を除く): 38819956

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 81553, 163106, 244659, 326212, 489318, 570871, 733977, 978636, 1141742, 1467954, 1712613, 2283484, 2935908, 3425226, 5137839, 6850452, 10275678, 20551356]

約数ペア:

[(1, 20551356), (2, 10275678), (3, 6850452), (4, 5137839), (6, 3425226), (7, 2935908), (9, 2283484), (12, 1712613), (14, 1467954), (18, 1141742), (21, 978636), (28, 733977), (36, 570871), (42, 489318), (63, 326212), (84, 244659), (126, 163106), (252, 81553)]