21983731

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3911}}^1$

素因数の和:4002

約数の個数: 16

約数和(自身を含む): 27790848

約数和(自身を除く): 5807117

約数列:

[1, 7, 11, 73, 77, 511, 803, 3911, 5621, 27377, 43021, 285503, 301147, 1998521, 3140533, 21983731]

約数ペア:

[(1, 21983731), (7, 3140533), (11, 1998521), (73, 301147), (77, 285503), (511, 43021), (803, 27377), (3911, 5621)]