209804553

素因数分解:

$3^3\times 7^1\times {\mathrm{1110077}}^1$

素因数の和:1110093

約数の個数: 16

約数和(自身を含む): 355224960

約数和(自身を除く): 145420407

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1110077, 3330231, 7770539, 9990693, 23311617, 29972079, 69934851, 209804553]

約数ペア:

[(1, 209804553), (3, 69934851), (7, 29972079), (9, 23311617), (21, 9990693), (27, 7770539), (63, 3330231), (189, 1110077)]