213994

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:221

約数の個数: 16

約数和(自身を含む): 357696

約数和(自身を除く): 143702

約数列:

[1, 2, 11, 22, 71, 137, 142, 274, 781, 1507, 1562, 3014, 9727, 19454, 106997, 213994]

約数ペア:

[(1, 213994), (2, 106997), (11, 19454), (22, 9727), (71, 3014), (137, 1562), (142, 1507), (274, 781)]