20409354

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{53993}}^1$

素因数の和:54011

約数の個数: 32

約数和(自身を含む): 51834240

約数和(自身を除く): 31424886

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 53993, 107986, 161979, 323958, 377951, 485937, 755902, 971874, 1133853, 1457811, 2267706, 2915622, 3401559, 6803118, 10204677, 20409354]

約数ペア:

[(1, 20409354), (2, 10204677), (3, 6803118), (6, 3401559), (7, 2915622), (9, 2267706), (14, 1457811), (18, 1133853), (21, 971874), (27, 755902), (42, 485937), (54, 377951), (63, 323958), (126, 161979), (189, 107986), (378, 53993)]