21511556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{7297}}^1$

素因数の和:7379

約数の個数: 24

約数和(自身を含む): 41686176

約数和(自身を除く): 20174620

約数列:

[1, 2, 4, 11, 22, 44, 67, 134, 268, 737, 1474, 2948, 7297, 14594, 29188, 80267, 160534, 321068, 488899, 977798, 1955596, 5377889, 10755778, 21511556]

約数ペア:

[(1, 21511556), (2, 10755778), (4, 5377889), (11, 1955596), (22, 977798), (44, 488899), (67, 321068), (134, 160534), (268, 80267), (737, 29188), (1474, 14594), (2948, 7297)]