217666316

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{61211}}^1$

素因数の和:61349

約数の個数: 24

約数和(自身を含む): 438767616

約数和(自身を除く): 221101300

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1778, 3556, 61211, 122422, 244844, 428477, 856954, 1713908, 7773797, 15547594, 31095188, 54416579, 108833158, 217666316]

約数ペア:

[(1, 217666316), (2, 108833158), (4, 54416579), (7, 31095188), (14, 15547594), (28, 7773797), (127, 1713908), (254, 856954), (508, 428477), (889, 244844), (1778, 122422), (3556, 61211)]