21296488

素因数分解:

$2^3\times {\mathrm{197}}^1\times {\mathrm{13513}}^1$

素因数の和:13716

約数の個数: 16

約数和(自身を含む): 40136580

約数和(自身を除く): 18840092

約数列:

[1, 2, 4, 8, 197, 394, 788, 1576, 13513, 27026, 54052, 108104, 2662061, 5324122, 10648244, 21296488]

約数ペア:

[(1, 21296488), (2, 10648244), (4, 5324122), (8, 2662061), (197, 108104), (394, 54052), (788, 27026), (1576, 13513)]