18780636226

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3121}}^1\times {\mathrm{6361}}^1$

素因数の和:9538

約数の個数: 32

約数和(自身を含む): 31461667776

約数和(自身を除く): 12681031550

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 3121, 6242, 6361, 12722, 34331, 68662, 69971, 134203, 139942, 268406, 273523, 547046, 1476233, 2952466, 3008753, 6017506, 19852681, 39705362, 218379491, 436758982, 853665283, 1707330566, 9390318113, 18780636226]

約数ペア:

[(1, 18780636226), (2, 9390318113), (11, 1707330566), (22, 853665283), (43, 436758982), (86, 218379491), (473, 39705362), (946, 19852681), (3121, 6017506), (6242, 3008753), (6361, 2952466), (12722, 1476233), (34331, 547046), (68662, 273523), (69971, 268406), (134203, 139942)]