18788264

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:714

約数の個数: 64

約数和(自身を含む): 42897600

約数和(自身を除く): 24109336

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 34, 38, 44, 68, 76, 88, 136, 152, 187, 209, 323, 374, 418, 646, 661, 748, 836, 1292, 1322, 1496, 1672, 2584, 2644, 3553, 5288, 7106, 7271, 11237, 12559, 14212, 14542, 22474, 25118, 28424, 29084, 44948, 50236, 58168, 89896, 100472, 123607, 138149, 213503, 247214, 276298, 427006, 494428, 552596, 854012, 988856, 1105192, 1708024, 2348533, 4697066, 9394132, 18788264]

約数ペア:

[(1, 18788264), (2, 9394132), (4, 4697066), (8, 2348533), (11, 1708024), (17, 1105192), (19, 988856), (22, 854012), (34, 552596), (38, 494428), (44, 427006), (68, 276298), (76, 247214), (88, 213503), (136, 138149), (152, 123607), (187, 100472), (209, 89896), (323, 58168), (374, 50236), (418, 44948), (646, 29084), (661, 28424), (748, 25118), (836, 22474), (1292, 14542), (1322, 14212), (1496, 12559), (1672, 11237), (2584, 7271), (2644, 7106), (3553, 5288)]