21117502561

素因数分解:

${\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{215399}}^1$

素因数の和:215568

約数の個数: 16

約数和(自身を含む): 22953024000

約数和(自身を除く): 1835521439

約数列:

[1, 17, 73, 79, 1241, 1343, 5767, 98039, 215399, 3661783, 15724127, 17016521, 267310159, 289280857, 1242206033, 21117502561]

約数ペア:

[(1, 21117502561), (17, 1242206033), (73, 289280857), (79, 267310159), (1241, 17016521), (1343, 15724127), (5767, 3661783), (98039, 215399)]