20926647

素因数分解:

$3^3\times 7^1\times {\mathrm{263}}^1\times {\mathrm{421}}^1$

素因数の和:700

約数の個数: 32

約数和(自身を含む): 35650560

約数和(自身を除く): 14723913

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 263, 421, 789, 1263, 1841, 2367, 2947, 3789, 5523, 7101, 8841, 11367, 16569, 26523, 49707, 79569, 110723, 332169, 775061, 996507, 2325183, 2989521, 6975549, 20926647]

約数ペア:

[(1, 20926647), (3, 6975549), (7, 2989521), (9, 2325183), (21, 996507), (27, 775061), (63, 332169), (189, 110723), (263, 79569), (421, 49707), (789, 26523), (1263, 16569), (1841, 11367), (2367, 8841), (2947, 7101), (3789, 5523)]