19978902

素因数分解:

$2^1\times 3^2\times {\mathrm{277}}^1\times {\mathrm{4007}}^1$

素因数の和:4292

約数の個数: 24

約数和(自身を含む): 43454736

約数和(自身を除く): 23475834

約数列:

[1, 2, 3, 6, 9, 18, 277, 554, 831, 1662, 2493, 4007, 4986, 8014, 12021, 24042, 36063, 72126, 1109939, 2219878, 3329817, 6659634, 9989451, 19978902]

約数ペア:

[(1, 19978902), (2, 9989451), (3, 6659634), (6, 3329817), (9, 2219878), (18, 1109939), (277, 72126), (554, 36063), (831, 24042), (1662, 12021), (2493, 8014), (4007, 4986)]