18914896

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1181}}^1$

素因数の和:1220

約数の個数: 80

約数和(自身を含む): 49246848

約数和(自身を除く): 30331952

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 572, 616, 728, 1001, 1144, 1181, 1232, 1456, 2002, 2288, 2362, 4004, 4724, 8008, 8267, 9448, 12991, 15353, 16016, 16534, 18896, 25982, 30706, 33068, 51964, 61412, 66136, 90937, 103928, 107471, 122824, 132272, 168883, 181874, 207856, 214942, 245648, 337766, 363748, 429884, 675532, 727496, 859768, 1182181, 1351064, 1454992, 1719536, 2364362, 2702128, 4728724, 9457448, 18914896]

約数ペア:

[(1, 18914896), (2, 9457448), (4, 4728724), (7, 2702128), (8, 2364362), (11, 1719536), (13, 1454992), (14, 1351064), (16, 1182181), (22, 859768), (26, 727496), (28, 675532), (44, 429884), (52, 363748), (56, 337766), (77, 245648), (88, 214942), (91, 207856), (104, 181874), (112, 168883), (143, 132272), (154, 122824), (176, 107471), (182, 103928), (208, 90937), (286, 66136), (308, 61412), (364, 51964), (572, 33068), (616, 30706), (728, 25982), (1001, 18896), (1144, 16534), (1181, 16016), (1232, 15353), (1456, 12991), (2002, 9448), (2288, 8267), (2362, 8008), (4004, 4724)]