209512905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{105019}}^1$

素因数の和:105053

約数の個数: 32

約数和(自身を含む): 403276800

約数和(自身を除く): 193763895

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 105019, 315057, 525095, 735133, 1575285, 1995361, 2205399, 3675665, 5986083, 9976805, 11026995, 13967527, 29930415, 41902581, 69837635, 209512905]

約数ペア:

[(1, 209512905), (3, 69837635), (5, 41902581), (7, 29930415), (15, 13967527), (19, 11026995), (21, 9976805), (35, 5986083), (57, 3675665), (95, 2205399), (105, 1995361), (133, 1575285), (285, 735133), (399, 525095), (665, 315057), (1995, 105019)]