220167521

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{3187}}^1$

素因数の和:3404

約数の個数: 16

約数和(自身を含む): 257080320

約数和(自身を除く): 36912799

約数列:

[1, 7, 71, 139, 497, 973, 3187, 9869, 22309, 69083, 226277, 442993, 1583939, 3100951, 31452503, 220167521]

約数ペア:

[(1, 220167521), (7, 31452503), (71, 3100951), (139, 1583939), (497, 442993), (973, 226277), (3187, 69083), (9869, 22309)]