20997036

素因数分解:

$2^2\times 3^3\times {\mathrm{433}}^1\times {\mathrm{449}}^1$

素因数の和:895

約数の個数: 48

約数和(自身を含む): 54684000

約数和(自身を除く): 33686964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 433, 449, 866, 898, 1299, 1347, 1732, 1796, 2598, 2694, 3897, 4041, 5196, 5388, 7794, 8082, 11691, 12123, 15588, 16164, 23382, 24246, 46764, 48492, 194417, 388834, 583251, 777668, 1166502, 1749753, 2333004, 3499506, 5249259, 6999012, 10498518, 20997036]

約数ペア:

[(1, 20997036), (2, 10498518), (3, 6999012), (4, 5249259), (6, 3499506), (9, 2333004), (12, 1749753), (18, 1166502), (27, 777668), (36, 583251), (54, 388834), (108, 194417), (433, 48492), (449, 46764), (866, 24246), (898, 23382), (1299, 16164), (1347, 15588), (1732, 12123), (1796, 11691), (2598, 8082), (2694, 7794), (3897, 5388), (4041, 5196)]