21544166

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{11071}}^1$

素因数の和:11219

約数の個数: 16

約数和(自身を含む): 37201920

約数和(自身を除く): 15657754

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 11071, 22142, 77497, 154994, 1538869, 3077738, 10772083, 21544166]

約数ペア:

[(1, 21544166), (2, 10772083), (7, 3077738), (14, 1538869), (139, 154994), (278, 77497), (973, 22142), (1946, 11071)]