20861913

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{733}}^1$

素因数の和:968

約数の個数: 16

約数和(自身を含む): 28537920

約数和(自身を除く): 7676007

約数列:

[1, 3, 53, 159, 179, 537, 733, 2199, 9487, 28461, 38849, 116547, 131207, 393621, 6953971, 20861913]

約数ペア:

[(1, 20861913), (3, 6953971), (53, 393621), (159, 131207), (179, 116547), (537, 38849), (733, 28461), (2199, 9487)]