20921860293

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{1657}}^1\times {\mathrm{79411}}^1$

素因数の和:81124

約数の個数: 16

約数和(自身を含む): 28439660736

約数和(自身を除く): 7517800443

約数列:

[1, 3, 53, 159, 1657, 4971, 79411, 87821, 238233, 263463, 4208783, 12626349, 131584027, 394752081, 6973953431, 20921860293]

約数ペア:

[(1, 20921860293), (3, 6973953431), (53, 394752081), (159, 131584027), (1657, 12626349), (4971, 4208783), (79411, 263463), (87821, 238233)]