21415900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19469}}^1$

素因数の和:19494

約数の個数: 36

約数和(自身を含む): 50699880

約数和(自身を除く): 29283980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 19469, 38938, 77876, 97345, 194690, 214159, 389380, 428318, 486725, 856636, 973450, 1070795, 1946900, 2141590, 4283180, 5353975, 10707950, 21415900]

約数ペア:

[(1, 21415900), (2, 10707950), (4, 5353975), (5, 4283180), (10, 2141590), (11, 1946900), (20, 1070795), (22, 973450), (25, 856636), (44, 486725), (50, 428318), (55, 389380), (100, 214159), (110, 194690), (220, 97345), (275, 77876), (550, 38938), (1100, 19469)]