209213613

素因数分解:

$3^2\times 7^1\times {\mathrm{1031}}^1\times {\mathrm{3221}}^1$

素因数の和:4265

約数の個数: 24

約数和(自身を含む): 345810816

約数和(自身を除く): 136597203

約数列:

[1, 3, 7, 9, 21, 63, 1031, 3093, 3221, 7217, 9279, 9663, 21651, 22547, 28989, 64953, 67641, 202923, 3320851, 9962553, 23245957, 29887659, 69737871, 209213613]

約数ペア:

[(1, 209213613), (3, 69737871), (7, 29887659), (9, 23245957), (21, 9962553), (63, 3320851), (1031, 202923), (3093, 67641), (3221, 64953), (7217, 28989), (9279, 22547), (9663, 21651)]