21054276

素因数分解:

$2^2\times 3^3\times {\mathrm{383}}^1\times {\mathrm{509}}^1$

素因数の和:905

約数の個数: 48

約数和(自身を含む): 54835200

約数和(自身を除く): 33780924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 383, 509, 766, 1018, 1149, 1527, 1532, 2036, 2298, 3054, 3447, 4581, 4596, 6108, 6894, 9162, 10341, 13743, 13788, 18324, 20682, 27486, 41364, 54972, 194947, 389894, 584841, 779788, 1169682, 1754523, 2339364, 3509046, 5263569, 7018092, 10527138, 21054276]

約数ペア:

[(1, 21054276), (2, 10527138), (3, 7018092), (4, 5263569), (6, 3509046), (9, 2339364), (12, 1754523), (18, 1169682), (27, 779788), (36, 584841), (54, 389894), (108, 194947), (383, 54972), (509, 41364), (766, 27486), (1018, 20682), (1149, 18324), (1527, 13788), (1532, 13743), (2036, 10341), (2298, 9162), (3054, 6894), (3447, 6108), (4581, 4596)]