221277171

素因数分解:

$3^1\times {\mathrm{167}}^1\times {\mathrm{443}}^1\times {\mathrm{997}}^1$

素因数の和:1610

約数の個数: 16

約数和(自身を含む): 297771264

約数和(自身を除く): 76494093

約数列:

[1, 3, 167, 443, 501, 997, 1329, 2991, 73981, 166499, 221943, 441671, 499497, 1325013, 73759057, 221277171]

約数ペア:

[(1, 221277171), (3, 73759057), (167, 1325013), (443, 499497), (501, 441671), (997, 221943), (1329, 166499), (2991, 73981)]