21665072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{557}}^1$

素因数の和:606

約数の個数: 80

約数和(自身を含む): 52309152

約数和(自身を除く): 30644080

約数列:

[1, 2, 4, 8, 11, 13, 16, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 176, 187, 208, 221, 272, 286, 374, 442, 557, 572, 748, 884, 1114, 1144, 1496, 1768, 2228, 2288, 2431, 2992, 3536, 4456, 4862, 6127, 7241, 8912, 9469, 9724, 12254, 14482, 18938, 19448, 24508, 28964, 37876, 38896, 49016, 57928, 75752, 79651, 98032, 104159, 115856, 123097, 151504, 159302, 208318, 246194, 318604, 416636, 492388, 637208, 833272, 984776, 1274416, 1354067, 1666544, 1969552, 2708134, 5416268, 10832536, 21665072]

約数ペア:

[(1, 21665072), (2, 10832536), (4, 5416268), (8, 2708134), (11, 1969552), (13, 1666544), (16, 1354067), (17, 1274416), (22, 984776), (26, 833272), (34, 637208), (44, 492388), (52, 416636), (68, 318604), (88, 246194), (104, 208318), (136, 159302), (143, 151504), (176, 123097), (187, 115856), (208, 104159), (221, 98032), (272, 79651), (286, 75752), (374, 57928), (442, 49016), (557, 38896), (572, 37876), (748, 28964), (884, 24508), (1114, 19448), (1144, 18938), (1496, 14482), (1768, 12254), (2228, 9724), (2288, 9469), (2431, 8912), (2992, 7241), (3536, 6127), (4456, 4862)]