13421121

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{751}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 21946368

約数和(自身を除く): 8525247

約数列:

[1, 3, 7, 21, 23, 37, 69, 111, 161, 259, 483, 751, 777, 851, 2253, 2553, 5257, 5957, 15771, 17273, 17871, 27787, 51819, 83361, 120911, 194509, 362733, 583527, 639101, 1917303, 4473707, 13421121]

約数ペア:

[(1, 13421121), (3, 4473707), (7, 1917303), (21, 639101), (23, 583527), (37, 362733), (69, 194509), (111, 120911), (161, 83361), (259, 51819), (483, 27787), (751, 17871), (777, 17273), (851, 15771), (2253, 5957), (2553, 5257)]