21096574

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12911}}^1$

素因数の和:12975

約数の個数: 16

約数和(自身を含む): 34087680

約数和(自身を除く): 12991106

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12911, 25822, 245309, 490618, 555173, 1110346, 10548287, 21096574]

約数ペア:

[(1, 21096574), (2, 10548287), (19, 1110346), (38, 555173), (43, 490618), (86, 245309), (817, 25822), (1634, 12911)]