1291245277

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{216761}}^1$

素因数の和:216828

約数の個数: 16

約数和(自身を含む): 1581495552

約数和(自身を除く): 290250275

約数列:

[1, 7, 23, 37, 161, 259, 851, 5957, 216761, 1517327, 4985503, 8020157, 34898521, 56141099, 184463611, 1291245277]

約数ペア:

[(1, 1291245277), (7, 184463611), (23, 56141099), (37, 34898521), (161, 8020157), (259, 4985503), (851, 1517327), (5957, 216761)]