20806561699

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1\times {\mathrm{7741}}^1$

素因数の和:8347

約数の個数: 32

約数和(自身を含む): 26381763072

約数和(自身を除く): 5575201373

約数列:

[1, 7, 11, 67, 77, 469, 521, 737, 3647, 5159, 5731, 7741, 34907, 40117, 54187, 85151, 244349, 383977, 518647, 596057, 2687839, 3630529, 4033061, 5705117, 28231427, 39935819, 44363671, 270215087, 310545697, 1891505609, 2972365957, 20806561699]

約数ペア:

[(1, 20806561699), (7, 2972365957), (11, 1891505609), (67, 310545697), (77, 270215087), (469, 44363671), (521, 39935819), (737, 28231427), (3647, 5705117), (5159, 4033061), (5731, 3630529), (7741, 2687839), (34907, 596057), (40117, 518647), (54187, 383977), (85151, 244349)]