21683721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{1873}}^1$

素因数の和:2120

約数の個数: 16

約数和(自身を含む): 30763584

約数和(自身を除く): 9079863

約数列:

[1, 3, 17, 51, 227, 681, 1873, 3859, 5619, 11577, 31841, 95523, 425171, 1275513, 7227907, 21683721]

約数ペア:

[(1, 21683721), (3, 7227907), (17, 1275513), (51, 425171), (227, 95523), (681, 31841), (1873, 11577), (3859, 5619)]