168207921

素因数分解:

$3^4\times 7^1\times {\mathrm{296663}}^1$

素因数の和:296682

約数の個数: 20

約数和(自身を含む): 287170752

約数和(自身を除く): 118962831

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 296663, 889989, 2076641, 2669967, 6229923, 8009901, 18689769, 24029703, 56069307, 168207921]

約数ペア:

[(1, 168207921), (3, 56069307), (7, 24029703), (9, 18689769), (21, 8009901), (27, 6229923), (63, 2669967), (81, 2076641), (189, 889989), (567, 296663)]