20677685

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 29486592

約数和(自身を除く): 8808907

約数列:

[1, 5, 7, 35, 53, 71, 157, 265, 355, 371, 497, 785, 1099, 1855, 2485, 3763, 5495, 8321, 11147, 18815, 26341, 41605, 55735, 58247, 78029, 131705, 291235, 390145, 590791, 2953955, 4135537, 20677685]

約数ペア:

[(1, 20677685), (5, 4135537), (7, 2953955), (35, 590791), (53, 390145), (71, 291235), (157, 131705), (265, 78029), (355, 58247), (371, 55735), (497, 41605), (785, 26341), (1099, 18815), (1855, 11147), (2485, 8321), (3763, 5495)]