21786692

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{653}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 40286400

約数和(自身を除く): 18499708

約数列:

[1, 2, 4, 19, 38, 76, 439, 653, 878, 1306, 1756, 2612, 8341, 12407, 16682, 24814, 33364, 49628, 286667, 573334, 1146668, 5446673, 10893346, 21786692]

約数ペア:

[(1, 21786692), (2, 10893346), (4, 5446673), (19, 1146668), (38, 573334), (76, 286667), (439, 49628), (653, 33364), (878, 24814), (1306, 16682), (1756, 12407), (2612, 8341)]