19890213

素因数分解:

$3^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{1811}}^1$

素因数の和:2344

約数の個数: 16

約数和(自身を含む): 30383616

約数和(自身を除く): 10493403

約数列:

[1, 3, 7, 21, 523, 1569, 1811, 3661, 5433, 10983, 12677, 38031, 947153, 2841459, 6630071, 19890213]

約数ペア:

[(1, 19890213), (3, 6630071), (7, 2841459), (21, 947153), (523, 38031), (1569, 12677), (1811, 10983), (3661, 5433)]