21165298

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137437}}^1$

素因数の和:137457

約数の個数: 16

約数和(自身を含む): 39582144

約数和(自身を除く): 18416846

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137437, 274874, 962059, 1511807, 1924118, 3023614, 10582649, 21165298]

約数ペア:

[(1, 21165298), (2, 10582649), (7, 3023614), (11, 1924118), (14, 1511807), (22, 962059), (77, 274874), (154, 137437)]