201867981

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{135391}}^1$

素因数の和:135472

約数の個数: 16

約数和(自身を含む): 311943168

約数和(自身を除く): 110075187

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 135391, 406173, 947737, 2843211, 9612761, 28838283, 67289327, 201867981]

約数ペア:

[(1, 201867981), (3, 67289327), (7, 28838283), (21, 9612761), (71, 2843211), (213, 947737), (497, 406173), (1491, 135391)]