21403263

素因数分解:

$3^1\times 7^1\times {\mathrm{863}}^1\times {\mathrm{1181}}^1$

素因数の和:2054

約数の個数: 16

約数和(自身を含む): 32679936

約数和(自身を除く): 11276673

約数列:

[1, 3, 7, 21, 863, 1181, 2589, 3543, 6041, 8267, 18123, 24801, 1019203, 3057609, 7134421, 21403263]

約数ペア:

[(1, 21403263), (3, 7134421), (7, 3057609), (21, 1019203), (863, 24801), (1181, 18123), (2589, 8267), (3543, 6041)]