12991012

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 23284800

約数和(自身を除く): 10293788

約数列:

[1, 2, 4, 71, 142, 149, 284, 298, 307, 596, 614, 1228, 10579, 21158, 21797, 42316, 43594, 45743, 87188, 91486, 182972, 3247753, 6495506, 12991012]

約数ペア:

[(1, 12991012), (2, 6495506), (4, 3247753), (71, 182972), (142, 91486), (149, 87188), (284, 45743), (298, 43594), (307, 42316), (596, 21797), (614, 21158), (1228, 10579)]