199989957

素因数分解:

$3^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1\times {\mathrm{419}}^1$

素因数の和:1220

約数の個数: 16

約数和(自身を含む): 268632000

約数和(自身を除く): 68642043

約数列:

[1, 3, 389, 409, 419, 1167, 1227, 1257, 159101, 162991, 171371, 477303, 488973, 514113, 66663319, 199989957]

約数ペア:

[(1, 199989957), (3, 66663319), (389, 514113), (409, 488973), (419, 477303), (1167, 171371), (1227, 162991), (1257, 159101)]