209777457

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:837

約数の個数: 32

約数和(自身を含む): 302579712

約数和(自身を除く): 92802255

約数列:

[1, 3, 23, 37, 69, 111, 127, 381, 647, 851, 1941, 2553, 2921, 4699, 8763, 14097, 14881, 23939, 44643, 71817, 82169, 108077, 246507, 324231, 550597, 1651791, 1889887, 3040253, 5669661, 9120759, 69925819, 209777457]

約数ペア:

[(1, 209777457), (3, 69925819), (23, 9120759), (37, 5669661), (69, 3040253), (111, 1889887), (127, 1651791), (381, 550597), (647, 324231), (851, 246507), (1941, 108077), (2553, 82169), (2921, 71817), (4699, 44643), (8763, 23939), (14097, 14881)]