21785706

素因数分解:

$2^1\times 3^3\times {\mathrm{403439}}^1$

素因数の和:403450

約数の個数: 16

約数和(自身を含む): 48412800

約数和(自身を除く): 26627094

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 403439, 806878, 1210317, 2420634, 3630951, 7261902, 10892853, 21785706]

約数ペア:

[(1, 21785706), (2, 10892853), (3, 7261902), (6, 3630951), (9, 2420634), (18, 1210317), (27, 806878), (54, 403439)]