21966832

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 44006112

約数和(自身を除く): 22039280

約数列:

[1, 2, 4, 8, 16, 61, 71, 122, 142, 244, 284, 317, 488, 568, 634, 976, 1136, 1268, 2536, 4331, 5072, 8662, 17324, 19337, 22507, 34648, 38674, 45014, 69296, 77348, 90028, 154696, 180056, 309392, 360112, 1372927, 2745854, 5491708, 10983416, 21966832]

約数ペア:

[(1, 21966832), (2, 10983416), (4, 5491708), (8, 2745854), (16, 1372927), (61, 360112), (71, 309392), (122, 180056), (142, 154696), (244, 90028), (284, 77348), (317, 69296), (488, 45014), (568, 38674), (634, 34648), (976, 22507), (1136, 19337), (1268, 17324), (2536, 8662), (4331, 5072)]