321781491

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{233683}}^1$

素因数の和:233712

約数の個数: 20

約数和(自身を含む): 508963752

約数和(自身を除く): 187182261

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 233683, 701049, 2103147, 3972611, 6309441, 11917833, 18928323, 35753499, 107260497, 321781491]

約数ペア:

[(1, 321781491), (3, 107260497), (9, 35753499), (17, 18928323), (27, 11917833), (51, 6309441), (81, 3972611), (153, 2103147), (459, 701049), (1377, 233683)]