221427647

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{37171}}^1$

素因数の和:37238

約数の個数: 16

約数和(自身を含む): 271206912

約数和(自身を除く): 49779265

約数列:

[1, 7, 23, 37, 161, 259, 851, 5957, 37171, 260197, 854933, 1375327, 5984531, 9627289, 31632521, 221427647]

約数ペア:

[(1, 221427647), (7, 31632521), (23, 9627289), (37, 5984531), (161, 1375327), (259, 854933), (851, 260197), (5957, 37171)]