199358145

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{210961}}^1$

素因数の和:210982

約数の個数: 32

約数和(自身を含む): 405047040

約数和(自身を除く): 205688895

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 210961, 632883, 1054805, 1476727, 1898649, 3164415, 4430181, 5695947, 7383635, 9493245, 13290543, 22150905, 28479735, 39871629, 66452715, 199358145]

約数ペア:

[(1, 199358145), (3, 66452715), (5, 39871629), (7, 28479735), (9, 22150905), (15, 13290543), (21, 9493245), (27, 7383635), (35, 5695947), (45, 4430181), (63, 3164415), (105, 1898649), (135, 1476727), (189, 1054805), (315, 632883), (945, 210961)]