21058900

素因数分解:

$2^2\times 5^2\times {\mathrm{251}}^1\times {\mathrm{839}}^1$

素因数の和:1104

約数の個数: 36

約数和(自身を含む): 45934560

約数和(自身を除く): 24875660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 251, 502, 839, 1004, 1255, 1678, 2510, 3356, 4195, 5020, 6275, 8390, 12550, 16780, 20975, 25100, 41950, 83900, 210589, 421178, 842356, 1052945, 2105890, 4211780, 5264725, 10529450, 21058900]

約数ペア:

[(1, 21058900), (2, 10529450), (4, 5264725), (5, 4211780), (10, 2105890), (20, 1052945), (25, 842356), (50, 421178), (100, 210589), (251, 83900), (502, 41950), (839, 25100), (1004, 20975), (1255, 16780), (1678, 12550), (2510, 8390), (3356, 6275), (4195, 5020)]