21096356

素因数分解:

$2^2\times {\mathrm{137}}^2\times {\mathrm{281}}^1$

素因数の和:559

約数の個数: 18

約数和(自身を含む): 37322418

約数和(自身を除く): 16226062

約数列:

[1, 2, 4, 137, 274, 281, 548, 562, 1124, 18769, 37538, 38497, 75076, 76994, 153988, 5274089, 10548178, 21096356]

約数ペア:

[(1, 21096356), (2, 10548178), (4, 5274089), (137, 153988), (274, 76994), (281, 75076), (548, 38497), (562, 37538), (1124, 18769)]