20804927589

素因数分解:

$3^2\times {\mathrm{509}}^1\times {\mathrm{727}}^1\times {\mathrm{6247}}^1$

素因数の和:7489

約数の個数: 24

約数和(自身を含む): 30156846720

約数和(自身を除く): 9351919131

約数列:

[1, 3, 9, 509, 727, 1527, 2181, 4581, 6247, 6543, 18741, 56223, 370043, 1110129, 3179723, 3330387, 4541569, 9539169, 13624707, 28617507, 40874121, 2311658621, 6934975863, 20804927589]

約数ペア:

[(1, 20804927589), (3, 6934975863), (9, 2311658621), (509, 40874121), (727, 28617507), (1527, 13624707), (2181, 9539169), (4581, 4541569), (6247, 3330387), (6543, 3179723), (18741, 1110129), (56223, 370043)]