21311218

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{673}}^1$

素因数の和:969

約数の個数: 16

約数和(自身を含む): 32610816

約数和(自身を除く): 11299598

約数列:

[1, 2, 71, 142, 223, 446, 673, 1346, 15833, 31666, 47783, 95566, 150079, 300158, 10655609, 21311218]

約数ペア:

[(1, 21311218), (2, 10655609), (71, 300158), (142, 150079), (223, 95566), (446, 47783), (673, 31666), (1346, 15833)]