19945188

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{13513}}^1$

素因数の和:13564

約数の個数: 36

約数和(自身を含む): 51650508

約数和(自身を除く): 31705320

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 738, 1476, 13513, 27026, 40539, 54052, 81078, 121617, 162156, 243234, 486468, 554033, 1108066, 1662099, 2216132, 3324198, 4986297, 6648396, 9972594, 19945188]

約数ペア:

[(1, 19945188), (2, 9972594), (3, 6648396), (4, 4986297), (6, 3324198), (9, 2216132), (12, 1662099), (18, 1108066), (36, 554033), (41, 486468), (82, 243234), (123, 162156), (164, 121617), (246, 81078), (369, 54052), (492, 40539), (738, 27026), (1476, 13513)]