211883985

素因数分解:

$3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{11981}}^1$

素因数の和:12126

約数の個数: 32

約数和(自身を含む): 379589760

約数和(自身を除く): 167705775

約数列:

[1, 3, 5, 9, 15, 27, 45, 131, 135, 393, 655, 1179, 1965, 3537, 5895, 11981, 17685, 35943, 59905, 107829, 179715, 323487, 539145, 1569511, 1617435, 4708533, 7847555, 14125599, 23542665, 42376797, 70627995, 211883985]

約数ペア:

[(1, 211883985), (3, 70627995), (5, 42376797), (9, 23542665), (15, 14125599), (27, 7847555), (45, 4708533), (131, 1617435), (135, 1569511), (393, 539145), (655, 323487), (1179, 179715), (1965, 107829), (3537, 59905), (5895, 35943), (11981, 17685)]