20808212649

素因数分解:

$3^1\times 7^3\times {\mathrm{20221781}}^1$

素因数の和:20221805

約数の個数: 16

約数和(自身を含む): 32354851200

約数和(自身を除く): 11546638551

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 20221781, 60665343, 141552467, 424657401, 990867269, 2972601807, 6936070883, 20808212649]

約数ペア:

[(1, 20808212649), (3, 6936070883), (7, 2972601807), (21, 990867269), (49, 424657401), (147, 141552467), (343, 60665343), (1029, 20221781)]