21329530

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{15569}}^1$

素因数の和:15713

約数の個数: 16

約数和(自身を含む): 38675880

約数和(自身を除く): 17346350

約数列:

[1, 2, 5, 10, 137, 274, 685, 1370, 15569, 31138, 77845, 155690, 2132953, 4265906, 10664765, 21329530]

約数ペア:

[(1, 21329530), (2, 10664765), (5, 4265906), (10, 2132953), (137, 155690), (274, 77845), (685, 31138), (1370, 15569)]