18718192

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{919}}^1$

素因数の和:1013

約数の個数: 40

約数和(自身を含む): 38787200

約数和(自身を除く): 20069008

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 76, 134, 152, 268, 304, 536, 919, 1072, 1273, 1838, 2546, 3676, 5092, 7352, 10184, 14704, 17461, 20368, 34922, 61573, 69844, 123146, 139688, 246292, 279376, 492584, 985168, 1169887, 2339774, 4679548, 9359096, 18718192]

約数ペア:

[(1, 18718192), (2, 9359096), (4, 4679548), (8, 2339774), (16, 1169887), (19, 985168), (38, 492584), (67, 279376), (76, 246292), (134, 139688), (152, 123146), (268, 69844), (304, 61573), (536, 34922), (919, 20368), (1072, 17461), (1273, 14704), (1838, 10184), (2546, 7352), (3676, 5092)]