21426548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{797}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 23618956

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 47, 52, 94, 143, 188, 286, 517, 572, 611, 797, 1034, 1222, 1594, 2068, 2444, 3188, 6721, 8767, 10361, 13442, 17534, 20722, 26884, 35068, 37459, 41444, 74918, 113971, 149836, 227942, 412049, 455884, 486967, 824098, 973934, 1648196, 1947868, 5356637, 10713274, 21426548]

約数ペア:

[(1, 21426548), (2, 10713274), (4, 5356637), (11, 1947868), (13, 1648196), (22, 973934), (26, 824098), (44, 486967), (47, 455884), (52, 412049), (94, 227942), (143, 149836), (188, 113971), (286, 74918), (517, 41444), (572, 37459), (611, 35068), (797, 26884), (1034, 20722), (1222, 17534), (1594, 13442), (2068, 10361), (2444, 8767), (3188, 6721)]