21329301

素因数分解:

$3^1\times 7^1\times {\mathrm{743}}^1\times {\mathrm{1367}}^1$

素因数の和:2120

約数の個数: 16

約数和(自身を含む): 32569344

約数和(自身を除く): 11240043

約数列:

[1, 3, 7, 21, 743, 1367, 2229, 4101, 5201, 9569, 15603, 28707, 1015681, 3047043, 7109767, 21329301]

約数ペア:

[(1, 21329301), (3, 7109767), (7, 3047043), (21, 1015681), (743, 28707), (1367, 15603), (2229, 9569), (4101, 5201)]