1681001

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:280

約数の個数: 16

約数和(自身を含む): 2052864

約数和(自身を除く): 371863

約数列:

[1, 7, 23, 53, 161, 197, 371, 1219, 1379, 4531, 8533, 10441, 31717, 73087, 240143, 1681001]

約数ペア:

[(1, 1681001), (7, 240143), (23, 73087), (53, 31717), (161, 10441), (197, 8533), (371, 4531), (1219, 1379)]