18908968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1609}}^1$

素因数の和:1741

約数の個数: 32

約数和(自身を含む): 38543400

約数和(自身を除く): 19634432

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 113, 226, 452, 904, 1469, 1609, 2938, 3218, 5876, 6436, 11752, 12872, 20917, 41834, 83668, 167336, 181817, 363634, 727268, 1454536, 2363621, 4727242, 9454484, 18908968]

約数ペア:

[(1, 18908968), (2, 9454484), (4, 4727242), (8, 2363621), (13, 1454536), (26, 727268), (52, 363634), (104, 181817), (113, 167336), (226, 83668), (452, 41834), (904, 20917), (1469, 12872), (1609, 11752), (2938, 6436), (3218, 5876)]