20871886

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{87697}}^1$

素因数の和:87723

約数の個数: 16

約数和(自身を含む): 37885536

約数和(自身を除く): 17013650

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 87697, 175394, 613879, 1227758, 1490849, 2981698, 10435943, 20871886]

約数ペア:

[(1, 20871886), (2, 10435943), (7, 2981698), (14, 1490849), (17, 1227758), (34, 613879), (119, 175394), (238, 87697)]