18228904

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2789}}^1$

素因数の和:2857

約数の個数: 32

約数和(自身を含む): 36828000

約数和(自身を除く): 18599096

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 817, 1634, 2789, 3268, 5578, 6536, 11156, 22312, 52991, 105982, 119927, 211964, 239854, 423928, 479708, 959416, 2278613, 4557226, 9114452, 18228904]

約数ペア:

[(1, 18228904), (2, 9114452), (4, 4557226), (8, 2278613), (19, 959416), (38, 479708), (43, 423928), (76, 239854), (86, 211964), (152, 119927), (172, 105982), (344, 52991), (817, 22312), (1634, 11156), (2789, 6536), (3268, 5578)]