20972588

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8231}}^1$

素因数の和:8262

約数の個数: 36

約数和(自身を含む): 45983952

約数和(自身を除く): 25011364

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8231, 16462, 32924, 57617, 107003, 115234, 214006, 230468, 403319, 428012, 749021, 806638, 1498042, 1613276, 2996084, 5243147, 10486294, 20972588]

約数ペア:

[(1, 20972588), (2, 10486294), (4, 5243147), (7, 2996084), (13, 1613276), (14, 1498042), (26, 806638), (28, 749021), (49, 428012), (52, 403319), (91, 230468), (98, 214006), (182, 115234), (196, 107003), (364, 57617), (637, 32924), (1274, 16462), (2548, 8231)]