201991419621

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{1320205357}}^1$

素因数の和:1320205380

約数の個数: 12

約数和(自身を含む): 308928053772

約数和(自身を除く): 106936634151

約数列:

[1, 3, 9, 17, 51, 153, 1320205357, 3960616071, 11881848213, 22443491069, 67330473207, 201991419621]

約数ペア:

[(1, 201991419621), (3, 67330473207), (9, 22443491069), (17, 11881848213), (51, 3960616071), (153, 1320205357)]