28207949

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{9901}}^1$

素因数の和:9956

約数の個数: 16

約数和(自身を含む): 36122496

約数和(自身を除く): 7914547

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 9901, 69307, 108911, 366337, 762377, 2564359, 4029707, 28207949]

約数ペア:

[(1, 28207949), (7, 4029707), (11, 2564359), (37, 762377), (77, 366337), (259, 108911), (407, 69307), (2849, 9901)]