291981315

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{1069}}^1$

素因数の和:1347

約数の個数: 32

約数和(自身を含む): 474566400

約数和(自身を除く): 182585085

約数列:

[1, 3, 5, 15, 131, 139, 393, 417, 655, 695, 1069, 1965, 2085, 3207, 5345, 16035, 18209, 54627, 91045, 140039, 148591, 273135, 420117, 445773, 700195, 742955, 2100585, 2228865, 19465421, 58396263, 97327105, 291981315]

約数ペア:

[(1, 291981315), (3, 97327105), (5, 58396263), (15, 19465421), (131, 2228865), (139, 2100585), (393, 742955), (417, 700195), (655, 445773), (695, 420117), (1069, 273135), (1965, 148591), (2085, 140039), (3207, 91045), (5345, 54627), (16035, 18209)]