20957022018

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{449}}^1\times {\mathrm{42509}}^1$

素因数の和:43027

約数の個数: 48

約数和(自身を含む): 46255131000

約数和(自身を除く): 25298108982

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 449, 549, 898, 1098, 1347, 2694, 4041, 8082, 27389, 42509, 54778, 82167, 85018, 127527, 164334, 246501, 255054, 382581, 493002, 765162, 2593049, 5186098, 7779147, 15558294, 19086541, 23337441, 38173082, 46674882, 57259623, 114519246, 171778869, 343557738, 1164279001, 2328558002, 3492837003, 6985674006, 10478511009, 20957022018]

約数ペア:

[(1, 20957022018), (2, 10478511009), (3, 6985674006), (6, 3492837003), (9, 2328558002), (18, 1164279001), (61, 343557738), (122, 171778869), (183, 114519246), (366, 57259623), (449, 46674882), (549, 38173082), (898, 23337441), (1098, 19086541), (1347, 15558294), (2694, 7779147), (4041, 5186098), (8082, 2593049), (27389, 765162), (42509, 493002), (54778, 382581), (82167, 255054), (85018, 246501), (127527, 164334)]