20831649

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{659}}^1$

素因数の和:960

約数の個数: 16

約数和(自身を含む): 28607040

約数和(自身を除く): 7775391

約数列:

[1, 3, 41, 123, 257, 659, 771, 1977, 10537, 27019, 31611, 81057, 169363, 508089, 6943883, 20831649]

約数ペア:

[(1, 20831649), (3, 6943883), (41, 508089), (123, 169363), (257, 81057), (659, 31611), (771, 27019), (1977, 10537)]